Step 1: Cook the Ground Beef : In a large skillet over medium-high heat, add the ground beef. Cook until browned, breaking it apart with a spatula as it cooks. Drain excess fat, leaving about 1 tablespoon in the pan.
Step 2: Add the Vegetables : Add the chopped onion, green bell pepper, and minced garlic to the pan. Cook for 3–4 minutes, stirring frequently, until softened and fragrant.
Step 3: Make the Sauce : Stir in ketchup, tomato paste, mustard, Worcestershire sauce, brown sugar, paprika, and chili powder. Mix well to combine and bring to a gentle simmer. Season with salt and pepper to taste.
Step 4: Simmer : Reduce heat to medium-low and let the mixture simmer uncovered for 8–10 minutes. Stir occasionally until the sauce thickens and clings to the beef. Taste and adjust seasoning if needed (add more mustard or sugar for tang/sweetness).
Step 5: Assemble the Sloppy Joes : Lightly toast the hamburger buns (this helps them stay firm). Spoon a generous portion of the Sloppy Joe mixture onto the bottom bun. Add sliced dill pickles on top of the meat. Cover with the top bun and serve immediately.