French Onion Beef Sloppy Joes: Cheesy Comfort

French Onion Beef Sloppy Joes fuse caramelized onions, savory ground beef, and melty Swiss cheese for gooey, umami-rich comfort on toasted buns. This 30-minute upgrade on the classic sloppy joe serves 4–6 with restaurant depth from beef broth and Worcestershire.

Why This Recipe Works

Caramelized onions create sweet-savory base absorbing beef juices. Condensed French onion soup delivers instant flavor without hours of simmering. Flour slurry thickens perfectly without graininess. Provolone or Swiss melts luxuriously under broiler. Brioche buns hold saucy filling without sogginess.

Ingredients & Prep

• 1½ lbs ground beef (80/20)
• 2 large yellow onions, thinly sliced
• 2 garlic cloves, minced
• 10.5 oz can condensed French onion soup
• ⅓ cup beef broth
• 2 tbsp Worcestershire sauce
• 2 tbsp flour + ¼ cup water (slurry)
• 6 slices Swiss or provolone cheese
• 6 brioche hamburger buns
• 2 tbsp butter

Step-by-Step Instructions

1. Melt 1 tbsp butter in skillet over medium; cook onions with pinch salt 15 minutes until deep golden. Add garlic last 2 minutes.
2. Push onions aside; brown beef 6–8 minutes until crumbly. Drain excess fat.
3. Stir in onion soup, broth, and Worcestershire; simmer 5 minutes.
4. Whisk flour slurry; stir in and cook 2–3 minutes until thickened.
5. Toast buns with remaining butter. Fill bottoms with beef mixture, top with cheese, broil 1–2 minutes until bubbly. Add onion pile; cap with bun tops.

Flavor Variations

Storage Tips

Refrigerate up to 4 days. Reheat stovetop with splash broth.

FAQs

Too sweet?
Use low-sodium soup; add balsamic splash.

Runny filling?
Simmer slurry longer to activate.

Cheese won’t melt?
Broil closer to heat source.

Conclusion

French Onion Beef Sloppy Joes elevate casual dinners caramelized cheesy bliss.

French Onion Beef Sloppy Joes: Cheesy Comfort

Print Recipe

A rich and savory twist on classic sloppy joes inspired by French onion soup. Juicy ground beef is simmered with caramelized onions in a beefy gravy, then piled onto buns and topped with gooey melted cheese.

• Author: ssam
• Prep Time: 10 mins
• Cook Time: 30 mins
• Total Time: 40 mins
• Yield: 4 servings 1x
• Category: Dinner
• Method: Stovetop
• Cuisine: American

Ingredients

Scale 1x2x3x

• 2 tbsp butter
• 2 large yellow onions, thinly sliced
• 1 lb ground beef
• 2 cloves garlic, minced
• 1 tbsp all-purpose flour
• 1 cup beef broth
• 1 tbsp Worcestershire sauce
• 1 tsp fresh thyme (or 1/2 tsp dried)
• Salt and black pepper to taste
• 4 hamburger buns
• 4–6 slices provolone, Swiss, or mozzarella cheese

Instructions

• 1. Melt butter in a large skillet over medium heat.
• 2. Add onions and cook 15–20 minutes, stirring often, until deeply caramelized.
• 3. Add ground beef and cook until browned, breaking it up as it cooks.
• 4. Stir in garlic and cook 30 seconds.
• 5. Sprinkle flour over the mixture and stir well; cook 1 minute.
• 6. Slowly pour in beef broth, stirring until a thick gravy forms.
• 7. Add Worcestershire sauce, thyme, salt, and pepper.
• 8. Simmer 5–7 minutes until saucy.
• 9. Spoon beef mixture onto buns and top with cheese.
• 10. Broil briefly or cover skillet until cheese is melted.
• 11. Serve hot.

Notes

• Toast buns lightly to prevent sogginess.
• Gruyère cheese adds the most authentic French onion flavor.
• Serve with fries, chips, or a simple green salad.

Nutrition

• Serving Size: 1 sandwich
• Calories: 520
• Sugar: 7g
• Sodium: 780mg
• Fat: 28g
• Saturated Fat: 12g
• Unsaturated Fat: 14g
• Trans Fat: 0g
• Carbohydrates: 34g
• Fiber: 2g
• Protein: 32g
• Cholesterol: 95mg

Keywords: french onion sloppy joes, beef sloppy joes, cheesy sloppy joes