In a large skillet over medium heat, add your ground beef or turkey. Cook until browned, breaking it apart with a spoon as it cooks. Once done, drain any excess fat and set the meat aside.

In the same skillet, toss in the onion, green bell pepper, and mushrooms, if you're including them. Sauté these for about 5-7 minutes until they're soft and fragrant.

Add the minced garlic and cooked meat back to the skillet. Stir in the beef broth, Worcestershire sauce, garlic powder, salt, and pepper. Let this simmer for about 10 minutes.

Just before serving, place a slice of provolone cheese on top of the meat mixture, cover the skillet, and let it melt.

Spoon the cheesy meat mixture onto your toasted hamburger buns. Don’t skimp on the filling; make it nice and hefty.

Serve these bad boys with your favorite sides, whether it be chips, a salad, or the classic pickles.