1. Start by heating the olive oil in a large skillet over medium heat. Add the sliced onions and cook until they are beautifully caramelized, about 15 minutes.

2. Next, add the ground beef to the skillet with the caramelized onions. Cook the beef, breaking it up with a spoon, until it’s browned and cooked through.

3. Stir in the minced garlic, Worcestershire sauce, dried thyme, salt, and pepper. Let the flavors meld together for 1-2 minutes.

4. Pour in the beef broth and let the mixture simmer for 5-7 minutes, allowing it to thicken into a rich, sloppy consistency.

5. Spoon the beefy, onion-infused mixture onto your hamburger buns. Top each one with a generous amount of shredded Swiss cheese.

6. Place the assembled French Onion Beef Sloppy Joes under the broiler or in the oven for 2-3 minutes, until the cheese is bubbly and irresistible.

7. Finish off by sprinkling some fresh, chopped parsley on top (if desired) and serve warm.