Strawberry Margarita Cake 3/4 cup bottled strawberry-flavored nonalcoholic margarita drink mix 1 (18.25 ounce) box white cake mix 1/3 cup vegetable oil 3 egg whites 1 tablespoon grated lime peel 1 (8 ounce) tub frozen whipped topping, thawed Strawberries Preheat oven to 350. Add enough water to drink mix to measure 1 1/4 cups. In bowl, combine cake mix, drink mix, oil and egg whites. Beat with mixer on low for 2 minutes. Pour into greased 9x13 inch baking pan. Bake for 28 to 33 minutes, or until toothpick inserted into center comes out clean. Cool completely. Gently stir lime peel into whipped topping. Spread over cake. Garnish with fresh strawberries. Store covered in refrigerator.