STRAWBERRY SQUARES

1/2 c. sifted flour
1/4 c. brown sugar
1/2 c. chopped pecans
1 stick margarine, melted
2 tsp. lemon juice
1 c. sugar
2 c. sliced fresh strawberries
2 egg whites
1 pt. whipping cream, whipped

Stir first 4 ingredients together. Spread evenly in 3-quart baking dish and bake at 350 degrees for 15 to 20 minutes. Let cool. Combine lemon juice, sugar, berries and egg whites in large mixing bowl. Beat at high speed until stiff peaks form (at least 10 minutes). Then fold in whipped cream. Spread over first layer in dish. Freeze at least 6 hours. Cut in squares and top with whipped cream to serve.