Mix strawberries with marshmallow topping in bowl. Allow to stand 25 minutes, stirring occasionally. Meantime chill Carnation in refrigerator tray until soft crystals form through milk (25-30 minutes). Whip Carnation until stiff (2 minutes). Add lemon juice; whip very stiff (2 minutes more). Blend with strawberry mixture. Place in refrigerator trays. Freeze until firm (about 3 hours). No more stirring needed!
*Mash 2 cups sliced berries with 1/2 cup sugar, or use 2 10 ounce packages frozen sweetened berries.