INGREDIENTS
1 lb
ground beef
1/2 cup
bread crumbs
2 tbsp
ketchup
1 tbsp
Worcestershire sauce
1 tsp
mustard powder
1
egg
salt and pepper
2 tbsp
butter
Gravy:
1 tbsp
olive oil
6 oz
mushrooms
1/2
large onion sliced
2 1/2 cups
beef broth
2 tbsp
ketchup
2 tbsp
Worcestershire sauce
1 tbsp
cornstarch
1 tbsp
water