Description

This Irresistible French Onion Beef Sloppy Joes recipe is a savory twist on the classic sloppy joe, combining caramelized onions with ground beef, melted provolone or Swiss cheese, and a rich blend of seasonings. Perfect for a comforting and easy weeknight dinner, these sandwiches feature a tender beef mixture simmered with Worcestershire sauce, beef broth, and Dijon mustard, served on toasted buns for the ultimate flavor experience.

Ingredients

Scale

Main Ingredients

1 pound ground beef
1 tablespoon olive oil
1 large yellow onion, thinly sliced
1 teaspoon garlic powder
1/2 teaspoon salt
1/4 teaspoon black pepper
1 tablespoon Worcestershire sauce
1/4 cup beef broth
1 tablespoon Dijon mustard
4 slices provolone or Swiss cheese
4 hamburger buns
1 tablespoon butter (optional, for toasting buns)

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Instructions

Caramelize Onions: In a large skillet over medium heat, heat olive oil and add the thinly sliced onions. Cook them for 10–12 minutes, stirring frequently, until they become soft and golden brown, developing a sweet, rich flavor.
Cook Beef: Push the caramelized onions to one side of the skillet. Add the ground beef to the empty side and cook until fully browned, breaking it up with a spoon into small pieces. Drain any excess fat to keep the mixture from becoming greasy.
Combine Seasonings: Stir in the garlic powder, salt, black pepper, Worcestershire sauce, beef broth, and Dijon mustard. Mix everything thoroughly to combine the flavors.
Simmer Mixture: Allow the beef and onion mixture to simmer for 3–4 minutes until it thickens slightly, concentrating the flavors and melding the ingredients.
Toast Buns (Optional): If desired, toast the hamburger buns in butter on a skillet until golden and slightly crispy to add texture and richness to the sandwiches.
Assemble Sandwiches: Spoon the hot beef and onion mixture onto the bottom halves of the buns. Top each with a slice of provolone or Swiss cheese. Cover with the top bun and serve immediately while warm.

Notes

For extra flavor, melt the cheese over the beef mixture in the skillet before assembling the sandwiches to create a gooey, cheesy topping.
Add a splash of balsamic vinegar or red wine during the onion caramelization step for a richer, deeper onion flavor.
Use different cheese varieties like sharp cheddar or pepper jack to customize the flavor profile.
Serve with pickles or crispy fries on the side for a classic combination.