Ingredients:
1 lb ground beef
1 small onion (chopped)
1 cup ketchup
2 tbsp tomato paste
1 tbsp Worcestershire sauce
1 tsp mustard
Salt & pepper to taste
Hamburger buns
Instructions:
Brown ground beef and onion in a skillet; drain fat.
Stir in ketchup, tomato paste, Worcestershire sauce, mustard, salt & pepper.
Simmer for 10–15 minutes until thickened.
Spoon mixture onto buns and serve!