INGREDIENTS
1 lbs
ground beef
2 tbsps
butter
1 small
onion
1 small
bell pepper
4 ozs
brown mushrooms
3 cloves
garlic
1/2 tsp
chili powder
2 1/2 tbsps
ketchup
1 1/2 tbsps
worcestershire sauce
1/2 tsp
salt
1/2 tsp
ground pepper
1 tbsp
cornstarch
1 cup
beef broth
6 oz
provolone cheese
6
hamburger buns