Step 1

Add ground beef, onion, pepper and mushrooms to a large skillet over medium-high heat. Cook, breaking up meat, until vegetables are tender and beef is cooked through.

Step 2

In a small bowl, whisk together ketchup, Worcestershire sauce, salt and pepper; pour into skillet and mix to combine.

Step 3

In a small bowl, whisk together cornstarch and beef broth until combined and pour into skillet. Stir to combine and let simmer, stirring occasionally, for an additional 8-10 minutes or until most of the excess liquid is absorbed.

Step 4

Serve on toasted hamburger buns with provolone cheese, if desired.