In a small bowl mix together ketchup, Worcestershire sauce, brown sugar, garlic powder, onion powder garlic salt, mustard, and black pepper. Set aside.
Add ground beef to a medium skillet and cook over medium-high heat until it begins to brown.
Add green pepper and cook until soft.
Drain liquids and stir in the mixture made in step 1. Mix until combined.
Reduce heat, and simmer covered for 20 minutes.
Remove the lid and simmer for about 5 minutes more or until the mixture thickens (if you like thicker sloppy joes)!
Serve with your favorite garnishes on your favorite rolls!
*Nutrition information calculated for the Sloppy Joe mixture alone, using 93% lean ground beef, making 8 servings. It does not include the bun since there are many bun options and all have varying nutritional information.