2 sm. or 1 lg. pkg. lemon Jello
2 c. boiling water
2 sm. bottles 7-Up
1 (20 oz.) can crushed pineapple
2 c. sm. marshmallows
2 lg. bananas, sliced

CUSTARD:

2 tbsp. butter
2 tbsp. flour
1 c. pineapple juice
2 eggs
1/2 c. sugar

Dissolve Jello. Drain pineapple, reserve juice. Add drained pineapple, marshmallows, bananas and 7-Up to Jello; cool.