1 c. flour
1/4 c. brown sugar
1/2 c. nuts
1/2 c. melted butter
2 egg whites (don't beat)
1 c. sugar
1 (10 oz.) pkg. partially thawed strawberries (can be fresh)
2 tbsp. lemon juice

1st set of ingredients (flour, brown sugar, nuts, melted butter) : Mix and spread into 9 x 13 inch pan. Bake at 350 degrees for 20 minutes. Cool and crumble with fork. Put 2/3 of mixture in bottom of pan.

2nd set of ingredients (rest of listed ingredients) : Mix at high speed for 10 minutes. Fold in 1 package of prepared Dream Whip or 1 quart of Cool Whip (large size). Put rest of crumb mixture on top. Freeze.