1 c. ketchup
1 tbsp. Worcestershire sauce
1 tbsp. brown sugar
1 tbsp. prepared mustard
3 lg. onions, cut in half crosswise
1 1/2 lbs. ground beef
1 egg
1 sm. green pepper, finely chopped
1 1/2 tsp. salt
Dash pepper

Combine first 4 ingredients and set aside. Scoop out centers of onions (save for use at a later time). Place each half onion on a square of heavy duty foil. Combine ground beef, egg, green pepper, salt, pepper and 3/4 cup of the ketchup mixture.

Shape into 6 balls and place one in each onion half. Pour remaining sauce over each onion.

Bring 4 corners of foil loosely together in a pyramid shape, allowing room for hear circulation and expansion. Seal by folding over ends and pressing together. When the coals have a grey ash, place foil wrapped onions on grill and cook for approximately 50 to 60 minutes. Onion Pocketburgers may also be cooked in a 350 degree oven for about the same length of time.