INGREDIENTS
1 lb
Ground beef
1
Green bell pepper, medium
1
Onion, medium
1 cup
Beef broth
2 tbsp
Ketchup
1 tbsp
Worcestershire sauce
1 tbsp
Cornstarch
1
Salt and pepper
1 tsp
Vegetable oil
8
Hamburger buns
1 tbsp
Butter
6 ounces provolone cheese, sliced or in chunks