Lemon Poppy Seed Cake
["1 (18.5 oz.) pkg. fat free yellow cake mix", "1/2 c. sugar", "1/2 c. vegetable oil", "1/4 c. water", "1 c. plain nonfat yogurt", "1 c. egg substitute", "3 Tbsp. lemon juice", "2 Tbsp. poppy seed"]
["Spray angel food cake pan with cooking spray.", "Cook 35 minutes at 350\u00b0."]
["yellow cake", "sugar", "vegetable oil", "water", "nonfat yogurt", "egg substitute", "lemon juice", "poppy seed"]