In a large skillet over medium-high heat, cook the ground beef, onion, and bell pepper until the beef is browned and the vegetables are soft, about 8 minutes.
Drain off any fat.
Add the ketchup, brown sugar, mustard, Worcestershire sauce, garlic powder, and black pepper to the skillet and stir to combine.
Reduce the heat to low and simmer for 10 minutes, stirring occasionally.
Serve the Sloppy Joe mixture on hamburger buns.
Interesting Facts
Sloppy Joes originated in the 1930s.
The dish is named after the person who invented it.
Sloppy Joes can be served with a variety of toppings, including cheese, lettuce, tomatoes, onions, pickles, and jalapenos.