Hearty Baked Beans

1 pound hamburger meat
1/2 medium onion, chopped
1/2 medium bell pepper, chopped
3 (12 ounce) cans pork and beans
1/2 cup packed brown sugar
1 tablespoon prepared mustard
3 tablespoons catsup

Preheat oven to 350 degrees F.

Brown ground beef, onion and bell pepper. Pour all 3 cans pork and beans into a 13 x 9-inch pan. Stir in brown sugar, mustard and catsup. Drain grease from hamburger meat. Stir meat mixture into beans. Mix thoroughly. Bake for 30 to 45 minutes.