Brown hamburger in large skillet along with green pepper, onion, salt, and pepper. DO NOT DRAIN. In small mixing bowl combine worsteshire sauce, tomato paste, yellow mustard, catsup, and brown sugar. Stir until smooth and brown sugar is disolved. Pour into hamburger mixture and stir together. (To better fit "picninc" needs transfer into crockpot and turn to low/warm) Serve on bun... Enjoy!