2 pkg. strawberry Jello
1 c. boiling water
2 (10 oz.) pkg. frozen, sliced strawberries, thawed
1 (1 lb. 4 oz.) can crushed pineapple
3 med. bananas, mashed
1 c. coarsely chopped walnuts

Stir Jello in boiling water until dissolved. Add rest of ingredients. Put 1/2 mixture in 8 x 12 x 2 inch pan or 4 quart bowl. Refrigerate until firm; cover with layer of sour cream. Add remainder. Refrigerate.