1 lb ground beef
1/2 cup onion, finely chopped
1/2 cup green bell pepper, finely chopped
1 1/2 cups tomato sauce
1/4 cup ketchup
2 tbsp Worcestershire sauce
2 tbsp brown sugar
1 tbsp mustard
1 tsp garlic powder
1/2 tsp salt
1/4 tsp black pepper
6 hamburger buns