INGREDIENTS
1 lb
Ground beef
1
Carrot, small
2
Celery stalks, small
2 cloves
Garlic
1
(8 to 10 ounce) package Mushrooms
1
Onion, medium small
1/4 cup
Ketchup
1 8 ounce can
Tomato sauce
1/2 tbsp
Worcestershire sauce
1/8
Black pepper
1 tsp
Salt
1/2 tbsp
Sugar
1 tbsp
Cider vinegar
1 tsp
Olive oil
8
Hamburger buns