In a large skillet, cook the ground beef over medium heat until browned, breaking it apart as it cooks. Drain excess fat if necessary.

Stir in the chopped onion, bell pepper, and minced garlic. Sauté until the vegetables become tender (about 5 minutes).

Add Worcestershire sauce, soy sauce, beef broth, and season with salt and pepper. Bring to a gentle simmer.

In a small bowl, whisk the cornstarch with a couple of tablespoons of cold water until smooth. Stir it into the beef mixture and cook until thickened (about 3-4 minutes).

Lower the heat and layer the provolone cheese on top. Cover the skillet for a couple of minutes until the cheese melts.

Spoon the beef mixture onto the hamburger buns, adding sliced jalapeños if desired.

Grab your napkins and dig in!