Eupha Bell's Baked Beans

1 lb ground beef
1/2 lb bacon, cut in small pieces
1 med. onion
1 can pork & beans
1 can butter beans
1 can red chili beans
2/3 cups brown sugar
1 tsp yellow mustard
1/4 cup catsup

Brown bacon and pour off grease. Set bacon aside. Brown beef and onion then add all ingredients and mix well. Bake covered at 250 until done.