01 - Heat a large skillet over medium-high heat. Add the ground beef and cook, breaking it up with a spatula, until browned and no longer pink, about 5–6 minutes. Drain excess fat if necessary.
02 - Add the chopped onion, green bell pepper, and minced garlic to the skillet with the beef. Sauté until vegetables are softened, 3–4 minutes.
03 - Stir in tomato sauce, tomato paste, ketchup, Worcestershire sauce, yellow mustard, brown sugar, smoked paprika, chili powder, salt, and pepper. Mix thoroughly until all ingredients are well combined.
04 - Reduce heat to low and simmer uncovered for 10–12 minutes, stirring occasionally, until the sauce thickens to a hearty consistency.
05 - While the mixture simmers, butter the cut sides of the burger buns. Toast them in a skillet or on a baking sheet until golden brown and crispy.
06 - Spoon the sloppy joe mixture generously onto the bottom half of each toasted bun. Top with sliced dill pickles and cover with the top bun. Serve immediately while hot.