Sloppy Joe Sandwich

Instructions

1. 1
   Heat oil in a skillet over medium heat. Add ground beef, breaking it up with a spoon, and cook until browned.
2. 2
   Add onion, bell pepper, and garlic. Cook until vegetables are soft, about 5 minutes.
3. 3
   Stir in ketchup, tomato paste, Worcestershire sauce, brown sugar, salt, and pepper.
4. 4
   Reduce heat and simmer for 10 minutes until thickened.
5. 5
   Spoon the mixture onto toasted hamburger buns and serve warm.