Heat a skillet over medium-high heat. Add the ground beef and cook until browned, breaking it up with a spoon. Drain excess fat if needed. This step builds the base flavor.

Add diced onions, bell peppers, and garlic. Cook for 3–4 minutes until softened and fragrant. These veggies give the sauce depth and texture.

Add tomato sauce, ketchup, tomato paste, Worcestershire sauce, brown sugar, mustard, smoked paprika, chili powder, salt, and pepper. Stir until everything is well combined.

Reduce heat to low and simmer for 10–12 minutes, stirring occasionally. The sauce will thicken as it cooks. Taste and adjust seasoning—more sugar for sweetness, mustard for tang, or paprika for smokiness.

Lightly toast the buns in a skillet or oven until golden and warm. This step prevents them from getting soggy and adds a subtle crunch.

Spoon the sloppy joe mixture over toasted buns. Add pickles or coleslaw if desired. Serve immediately while hot and saucy.