1 c. flour
1/4 c. brown sugar
1/2 c. chopped pecans
1/2 c. melted butter
2 lg. egg whites
2/3 c. sugar
10 oz. pkg. frozen strawberries, partially thawed
2 tbsp. lemon juice
9 oz. Cool Whip

Stir together first 4 ingredients. Spread evenly in shallow pan. Bake at 350 degrees for about 20 minutes, stirring as needed. Sprinkle 2/3 crumbs in 13 x 9 inch pan. Combine egg whites, sugar, berries, lemon juice in large bowl. With electric beater, beat at high speed to stiff peaks. Fold in Cool Whip. Spoon over crumbs, top with remaining crumbs. Freeze 6 hours or overnight.