Frosty Strawberry Dessert 🍓

INGREDIENTS
1 cup all-purpose flour
1⁄4 cup brown sugar, packed
1⁄2 cup chopped walnuts
1⁄2 cup melted butter

2 egg whites
2⁄3 cup sugar
1 (10 ounce) package frozen strawberries
2 tablespoons lemon juice
1 cup whipping cream, whipped