Combine:

      1 large box Strawberry & Banana Jello
      1-1/2 cup boiling water

When the Jello is completely dissolved , add and stir:

      1 - 16 oz. pkg of frozen strawberries, sliced &
              sweetened
      1 small can crushed pineapple, including the liquid
      1 can Cranberry Jelly (sauce)
      2 bananas, mashed

Place half of the Jello mixture into a 9" x 13" baking dish
Cover this layer with:

      1 container sour cream

Top with the rest of the Jello mixture.

Chill before serving.