INGREDIENTS
1 tbsp
olive oil
1 lb
ground beef
1 small
onion
1
bell pepper
4 cloves
garlic
1 cup
reduced sodium beef broth
1 tbsp
cornstarch
1 1/2 tsp
beef bouillon
2 tbsp
ketchup
2 tbsp
worcestershire sauce
1 tsp
dijon mustard
1 tsp
oregano
1/2 tsp
salt
1/4 tsp
pepper flakes
3/4 cup
sharp cheddar cheese
6
brioche hamburger buns
6 slices
provolone cheese
1