What to Do With Leftover French Onion Soup – 15 Creative Ideas

Every product is independently reviewed and selected by our editors. If you buy something through our links, we may earn an affiliate commission at no extra cost to you.

Leftover French onion soup can be used in a variety of ways, including as a base for other soups or stews, as a flavoring for roasted vegetables or meats, and even as a sauce for pasta or rice dishes.

French onion soup is a delicious and comforting dish made with caramelized onions, beef broth, and melted cheese on top.

However, it is not uncommon to have some leftover soup after a meal. Instead of letting it go to waste, there are numerous ways to repurpose and reinvent your leftovers.

By using the flavor-packed soup as a base, you can transform it into other recipes that are equally mouthwatering.

From tasty pasta dishes to hearty stews, these ideas will help you make the most out of your leftover French onion soup.

So, let’s dive into these 15 creative ways to use and enjoy your leftover French onion soup.

Creative 15 Uses For Leftover French Onion Soup

What to Do With Leftover French Onion Soup

Leftover French Onion Soup can easily be transformed into a variety of delicious meals, providing a convenient and tasty solution for using up leftovers.

Consider these 15 exciting recipe ideas to incorporate your leftover soup into new and inventive dishes:

1. French Onion Soup Pasta Bake

Leftover French onion soup can be transformed into a delicious dish like French Onion Soup Pasta Bake.

This mouthwatering baked dish combines the flavorful broth of the soup with pasta and a generous amount of melted cheese.

Easy French Onion Soup Pasta Bake

To make this dish, simply mix cooked pasta with the leftover soup, top it with cheese, and bake until golden and bubbly.

The result is a creamy, cheesy pasta dish with the rich and savory flavors of French onion soup. It’s a great way to use up any leftover soup and create a new and exciting meal.

Serve it as a main course or as a side dish with a fresh salad for a complete and satisfying meal. Enjoy!

2. French Onion Soup Grilled Cheese

Elevate the classic grilled cheese sandwich by adding a savory twist with caramelized onions.

Take your leftover French onion soup and transform it into a delicious grilled cheese creation.

French Onion Soup Grilled Cheese

Begin by caramelizing onions until they are soft, sweet, and golden brown.

Spread some butter on one side of each bread slice and layer one side with sharp cheddar or Gruyere cheese.

Then, add a generous amount of the caramelized onions on top of the cheese.

Top with another slice of cheese and close the sandwich with the other bread slice, butter side out.

Heat a skillet over medium heat and cook the sandwich until the bread is golden brown and the cheese is melted.

Carefully flip it and cook the other side until it turns crispy and the cheese is oozy.

Serve your French Onion Soup Grilled Cheese hot with a side of leftover soup for dipping.

3. French Onion Soup Pot Pie

Looking for a creative way to use up your leftover French Onion Soup? Try making a French Onion Soup Pot Pie!

This delicious twist on the classic pot pie replaces the traditional filling with leftover soup, resulting in a rustic and hearty comfort food that’s perfect for chilly nights.

French Onion Soup Pot Pie

To make this mouthwatering dish, simply pour your leftover French Onion Soup into a pie dish or individual ramekins.

Top it with a layer of flaky pastry dough and bake until golden and bubbly.

The rich flavors of the soup infuse into the pastry, creating a savory and delicious filling.

For an added touch, you can also sprinkle some extra shredded cheese on top before baking, or garnish with fresh herbs like thyme or parsley.

Serve your French Onion Soup Pot Pie with a side salad or some crusty bread for a complete and satisfying meal.

So the next time you find yourself with leftover French Onion Soup, don’t let it go to waste.

Get creative in the kitchen and try making this French Onion Soup Pot Pie for a tasty and unique meal.

4. French Onion Soup Meatballs

Mixing the rich and flavorful French onion soup broth into ground meat is a delicious and creative way to add a burst of flavor to traditional meatballs.

The savory broth, with its caramelized onions and hearty beef base, infuses the meatballs with a depth of taste that is both comforting and satisfying.

French Onion Soup Meatballs

When making French onion soup meatballs, start by combining ground meat with breadcrumbs, eggs, and finely minced onions.

Then, instead of using traditional seasonings, incorporate the leftover French onion soup broth into the meat mixture.

This not only enhances the flavor but also helps to keep the meatballs moist and tender.

To form the meatballs, roll the mixture into bite-sized balls and place them on a baking sheet.

Bake in the oven until they are cooked through and golden brown on the outside.

You can serve them as an appetizer, a main course, or even as a topping for a French onion soup-inspired sandwich.

Whether served with a side of mashed potatoes, on a bed of pasta, or atop a crusty baguette, French onion soup meatballs are a versatile and delicious way to repurpose leftover soup.

With their rich and savory flavor, they are sure to become a favorite in your household.

5. French Onion Soup Stuffed Mushrooms

When you have leftover French onion soup, one delicious way to use it up is by adding it as a filling in mushroom caps.

French Onion Soup Stuffed Mushrooms

This creates a savory and flavorful appetizer that will be a hit at any gathering.

To make French onion soup stuffed mushrooms, start by removing the stems from the mushrooms and scooping out the gills to create a hollow space for the filling.

Then, fill each mushroom cap with a generous amount of the leftover French onion soup.

The rich flavors of the soup will complement the earthy taste of the mushrooms beautifully.

Once filled, bake the mushrooms in the oven until they are tender and the filling is heated through.

Serve them as a tasty and unique appetizer that is sure to impress your guests.

6. French Onion Soup Bread Pudding

Leftover French Onion Soup can be transformed into a delicious French Onion Soup Bread Pudding.

French Onion Soup Bread Pudding

This creative dish makes use of the leftover soup to moisten stale bread, creating a savory bread pudding that is sure to delight your taste buds.

To prepare the bread pudding, preheat your oven to 350°F (175°C). Grease a baking dish and place the stale bread slices in a single layer.

Pour the leftover French Onion Soup over the bread, ensuring that each slice is adequately soaked.

In a separate bowl, beat the eggs and milk together, then pour this mixture over the bread and soup.

Sprinkle the grated Gruyere cheese on top and season with salt and pepper.

Bake the bread pudding in the preheated oven for 30-35 minutes, or until the top is golden brown and the center is set.

Remove from the oven and let it cool for a few minutes before serving.

This French Onion Soup Bread Pudding is a unique and delicious way to repurpose your leftover soup, creating a satisfying and flavorful dish.

7. French Onion Soup Beef Stew

Leftover French Onion Soup can be a delicious base for numerous dishes, including a flavorful French Onion Soup Beef Stew.

French Onion Soup Beef Stew

This hearty stew combines the rich flavors of the soup with tender beef and vegetables, creating a comforting and satisfying meal.

To make this stew, simply use your leftover French Onion Soup as the broth and add in chunks of beef, carrots, potatoes, and any other vegetables you desire.

Let the stew simmer on the stovetop until the beef is tender and the flavors have melded together. The result is a savory and aromatic dish that will warm you up on a chilly day.

8. French Onion Soup Dip

Transforming the leftover French Onion Soup into a creamy dip is a delicious way to repurpose this classic soup.

French Onion Soup Dip

This dip is perfect for enjoying with chips or veggies, making it a crowd-pleasing appetizer for any occasion.

To make the dip, simply heat up the leftover French Onion Soup in a saucepan until it’s warm and bubbly.

Then, transfer it to a blender or food processor and blend until smooth and creamy.

You can adjust the consistency by adding a bit of sour cream or cream cheese and season it with your favorite herbs and spices.

Serve the dip in a bowl surrounded by chips or arrange some fresh veggies on a platter for dipping. It’s an easy and flavorful way to use up any leftover French Onion Soup!

9. French Onion Soup Quiche

One creative way to utilize leftover French onion soup is by incorporating it into a savory egg custard to create a unique and flavorful French Onion Soup Quiche.

French Onion Soup Quiche

This dish combines the rich and savory flavors of the soup with a buttery and flaky pastry crust.

The leftover soup can be added directly to the custard mixture, providing an extra layer of depth and complexity to the quiche.

The sweetness from the caramelized onions in the soup pairs well with the creamy and tangy custard, resulting in a delightful combination of flavors.

This French Onion Soup Quiche can be served as a delicious brunch or lunch option, and it can also be enjoyed as a light dinner with a salad on the side.

It offers a creative twist on a classic dish and is sure to impress your guests with its unique flavor profile.

So, next time you find yourself with leftover French onion soup, consider making this delicious and satisfying French Onion Soup Quiche.

10. French Onion Soup Mashed Potatoes

Looking for a creative way to use up leftover French onion soup? Try incorporating it into mashed potatoes for a flavorful twist on a classic side dish.

French Onion Soup Mashed Potatoes

To infuse the potatoes with the rich onion broth, simply boil the potatoes in the leftover soup instead of water.

Once the potatoes are cooked and tender, drain them and mash them with butter, cream, and any additional seasonings you desire.

The result is a creamy and savory mashed potato dish that pairs perfectly with roasted meats or as a standalone comfort food.

This inventive take on mashed potatoes is a great way to repurpose leftover French onion soup and create a delicious and unique side dish that everyone will love.

11. French Onion Soup Baked Chicken

Marinating chicken in leftover French onion soup is a brilliant way to infuse the meat with both moisture and flavor.

French Onion Soup Baked Chicken

Simply place the chicken in a resealable bag or a bowl and pour in the soup to cover it completely.

Let it marinate in the refrigerator for at least an hour, or even overnight, for the flavors to meld.

When you’re ready to cook, remove the chicken from the marinade and pat it dry with paper towels. Preheat your oven to 375°F (190°C).

Place the chicken in a baking dish and bake for about 30-35 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the juices run clear.

While the chicken is baking, you can heat the leftover soup on the stovetop until hot.

This can be served alongside the chicken for a delicious sauce or poured over the chicken before baking for added flavor.

The result is a succulent and savory main course that is sure to impress!

12. French Onion Soup Crostini

Looking for ideas on what to do with leftover French Onion Soup? Here are 15 creative ways to repurpose this flavorful dish:

Crostini: Toasting bread and topping with caramelized onions creates a gourmet appetizer or snack.

 Pasta: Toss leftover soup with cooked pasta for a delicious and easy meal.

Grilled Cheese: Spread caramelized onions between layers of cheese and toast until golden.

Beef Stew: Use the soup as a base for a hearty stew with chunks of beef and vegetables.

Shepherd’s Pie: Layer the soup with ground meat and mashed potatoes for a twist on this classic dish.

Meatballs: Mix leftover soup with ground meat, breadcrumbs, and spices to make flavorful meatballs.

Pot Pie: Fill a pie crust with leftover soup and top with puff pastry for a rich and comforting meal.

 Dip: Mix the soup with cream cheese and spices for a creamy and savory dip.

Stuffed Peppers: Use the soup as a filling for roasted bell peppers.

Casserole: Layer the soup with bread, cheese, and vegetables for a tasty baked dish.

Quiche: Incorporate the soup into a quiche filling for a unique twist on a classic brunch dish.

Pizza: Spread the soup onto pizza dough and top with cheese and your favorite toppings.

13. French Onion Soup Sliders

French Onion Soup sliders are a delicious way to repurpose leftover soup. The rich and flavorful soup acts as a tasty topping for mini burgers, adding depth and richness to each bite.

To make French Onion Soup sliders, simply cook your mini burgers as you normally would, and then spoon a generous amount of the leftover soup on top of each patty.

The soup will soak into the burger and blend perfectly with the juicy meat.

You can further enhance the sliders by topping them with melted cheese, like gruyere or Swiss, and serving them on toasted slider buns.

This combination of flavors and textures creates a mouthwatering bite-sized version of the classic French Onion Soup.

It’s a great option for parties, game days, or even just a fun twist on traditional burgers.

14. French Onion Soup Fondue

Transform leftover French Onion Soup into a delightful French Onion Soup Fondue.

Dip in crusty bread or vegetables for a cheesy and comforting culinary experience. Perfect for cozy gatherings or a fun appetizer.

Melting cheese into leftover French onion soup is a brilliant way to create a warm and cheesy dip that is perfect for entertaining or gatherings.

Simply heat up the leftover soup in a saucepan until it’s hot and bubbly. Meanwhile, shred some Swiss or Gruyere cheese and sprinkle it over the top.

Let the cheese melt into the soup, creating a gooey and delicious dip.

This French onion soup fondue is an excellent option for parties or cozy nights in. Serve it with crusty bread for dipping or a side of sliced baguette.

The combination of flavors from the caramelized onions and melted cheese will be a real crowd-pleaser.

If you want to add extra depth to the dip, you can also sprinkle some chopped fresh herbs or a dash of Worcestershire sauce over the top. This will give the fondue a tangy and savory twist.

Whether you have leftover soup from a homemade batch or a store-bought one, this idea will transform it into a delightful, cheesy treat.

15. French Onion Soup Risotto

French Onion Soup Risotto is a delicious way to repurpose leftover French Onion Soup.

This creamy and flavorful dish combines the rich flavors of the soup with the creamy texture of risotto.

To make French Onion Soup Risotto, you can use the leftover soup as a flavorful broth for cooking the risotto. Begin by sautéing onions and garlic in a pan.

Then, add Arborio rice and cook until it becomes translucent. Next, gradually add the leftover French Onion

Soup, stirring constantly until the liquid is absorbed. Continue this process until the risotto is cooked and creamy.

The result is a decadent and flavorsome dish that showcases the classic flavors of French Onion Soup in a new and exciting way.

The caramelized onions, rich beef broth, and melted cheese from the soup infuse the risotto with incredible flavor.

French Onion Soup Risotto is a great option for using up leftover soup and turning it into something extraordinary.

It can be served as a main course or as a side dish alongside a juicy steak or roasted chicken.

What Else Can I Use French Onion Soup Bowls For?

French onion soup bowls can be used for more than just soup. They are perfect for serving other dishes like casseroles, stews, desserts, and appetizers. The bowls’ deep shape and handle make them versatile and stylish for any occasion.

How Long Does French Onion Soup Last In The Fridge?

The shelf life of French Onion Soup in the fridge depends on various factors, including how it’s stored and the specific ingredients used.

Generally, homemade French Onion Soup can last for 3 to 4 days in the refrigerator when stored in an airtight container.

How Long Is Leftover French Onion Soup Good For?

Leftover French Onion Soup is generally good for about 3 to 4 days when stored in the refrigerator.

It’s crucial to refrigerate the soup promptly, within two hours of preparation, to slow down bacterial growth and maintain its freshness.

Make sure to store it in an airtight container to prevent odors from the fridge affecting the soup and to reduce the risk of contamination.

If you have more than you can consume within a few days, consider freezing the leftovers for longer storage.

When frozen, French Onion Soup can last for 2 to 3 months, maintaining its quality.

However, keep in mind that the texture of certain ingredients, especially those with a high water content like onions, may change slightly upon thawing.

What Is Good To Have With French Onion Soup?

Pair French onion soup with a crusty baguette or topped with melted cheese for a delicious combination.

Conclusion

To wrap up, these 15 ideas provide creative ways to repurpose leftover French onion soup. From turning it into a savory dip to using it as a flavorful base for stews and casseroles, you can ensure that this delicious soup doesn’t go to waste.

Experimenting with these suggestions will not only help reduce food waste, but also add variety and excitement to your meals.

So don’t let that pot of leftover French onion soup languish in the fridge – get creative and start utilizing it in these inventive ways!

Leave a Comment