Recipe(tried): Four Bean Baked Beans

FOUR-BEAN BAKED BEANS

1 (1 lb.) can pork and beans
1 (1 lb.) can kidney beans
1 (1 lb.) can butter beans, drained
1 (1 lb.) can French-style green beans, drained
1/2 to 1 lb. bacon, cut into cubes
1 T. prepared mustard
2 onions, chopped (about 1 cup)
1/2 C. catsup
1/2 C. brown sugar, firmly packed
1/4 C. molasses
2 T. vinegar
Dash of Worcestershire sauce
1/2 tsp. salt
1 (18 oz.) can crushed pineapple, drained well (optional)

Preheat oven to 350 F. Brown bacon and drain off fat. Mix all ingredients well. Bake for 1 hour, until hot and bubbly, or longer, if desired.