Red, White and Blueberry Delight

1 can (14 oz) sweetened condensed milk
1/3 cup lemon juice
2 teaspoons grated lemon peel
2 cups (1 pint) plain yogurt
2 cups minature marshmallows
1/2 cup chopped pecans (optional
1 pint fresh strawberries, sliced
1 cup blueberries

Combine milk, lemon juice, lemon zest, mix well. Stir in yogurt, marshmallows and nuts. In a 13x9 inch baking dish spread half of the white mixture on bottom. Spread half of the strawberries and blueberries on top then layer again with white mixture. Add remaining fruit to top making the American flag- alternating strawberries for stripes and putting blueberries in the corner for stars. Cover with foil, freeze until firm. Remove from freezer 10 minutes before serving.