Making French Onion Beef Sloppy Joes is simple when you follow these easy steps:

1. Cook the Onions: In a large skillet, heat the butter and olive oil over medium heat. Add the sliced onions and cook until they are caramelized, about 10-12 minutes, stirring occasionally.

2. Brown the Beef: Push the onions to the side of the skillet. Add the ground beef and cook until browned, breaking it up with a spatula, about 5-7 minutes.

3. Combine Ingredients: Once the beef is cooked, mix in the caramelized onions. Stir in the beef broth, Worcestershire sauce, garlic powder, onion powder, salt, and pepper.

4. Simmer: Let the mixture simmer for about 5 minutes, allowing the flavors to meld. If the mixture is too soupy, cook for additional minutes until it thickens.

5. Prepare the Buns: While the meat mixture is simmering, toast the hamburger buns in a separate skillet or oven until golden brown.

6. Assemble Sloppy Joes: Spoon the beef and onion mixture generously onto the bottom half of each toasted bun.

7. Add Cheese: Sprinkle shredded Swiss cheese over the beef mixture. You can place the assembled sloppy joes under the broiler for a minute or two to melt the cheese if desired.

8. Garnish and Serve: Top with the other half of the bun and garnish with fresh parsley if you like. Serve immediately and enjoy!