Cheese Cake Squares
["2 (8 oz.) pkg. cream cheese", "3/4 c. sugar", "1 tsp. vanilla", "1 tsp. lemon juice", "1 egg, separated (reserve white of egg)", "2 pkg. crescent rolls"]
["Preheat oven to 350\u00b0.", "Spray bottom of 9 x 13-inch pan lightly with cooking spray."]
["cream cheese", "sugar", "vanilla", "lemon juice", "egg", "crescent rolls"]