Nana's Strawberry Jello Salad

This was another Thanksgiving favorite.

1 lrg. pkg. strawberry Jello, dissolved in 3 C boiling water
1 pkg. frozen strawberries
3 mashed bananas
1 #2 can crushed pineapple

Mix all ingredients together.  Set 1/2 of jello mixture in the bottom of a 9x13’pan.  When set, spread with 1 lrg. carton (2 C) sour cream.  Pour remaining jello mixture over and set.