01 - Heat a large skillet over medium-high heat. Crumble in the ground beef and cook, breaking apart with a spatula, until browned and no pink remains, approximately 5 to 6 minutes. Pour off excess grease if needed.
02 - Add the chopped onion, green bell pepper, and minced garlic to the browned beef. Cook, stirring frequently, until vegetables soften, about 3 to 4 minutes.
03 - Pour in the tomato sauce, tomato paste, ketchup, Worcestershire sauce, and yellow mustard. Sprinkle in brown sugar, smoked paprika, chili powder, salt, and pepper. Stir until thoroughly combined and sugar dissolves.
04 - Reduce heat to low and let the mixture simmer uncovered, stirring occasionally, for 10 to 12 minutes until sauce reaches desired consistency.
05 - While sauce simmers, spread butter on cut sides of burger buns. Toast in a skillet or on a baking sheet until golden brown and crisp.
06 - Heap the sloppy joe meat generously onto bottom bun halves. Top with dill pickle chips and cover with top bun. Serve immediately while hot.