Refrigerate bowl and beaters.

1 (10 oz.) pkg. frozen strawberries
2 egg whites
3/4 c. sugar
1/8 tsp. salt
1 tbsp. lemon juice

Throw in cooled bowl; beat 15 minutes at high speed. Add 1 cup Cool Whip and 1/2 cup whipped cream and 1/2 teaspoon vanilla. Freeze.