1 (6 oz.) pkg. strawberry Jello
2 1/2 c. boiling water
1 c. mashed bananas
1 lg. bag frozen strawberries
1 sm. can crushed pineapple, drained
1 carton sour cream

Dissolve Jello in boiling water. Immediately add frozen berries, pineapple, and bananas. Pour half of mixture in 8 x 8 inch pan (or mold); let partially set. Cover with a layer of sour cream. Add remaining Jello and refrigerate to set completely. Cut in squares or unmold.