Pineapple Sheet Cake

This is one of my mother's favorite recipes. It makes a large-size sheet cake. It is very moist and very delicious. Cake: 2 cups flour s cups sugar 2 TBS baking soda 2 beaten eggs 1 tsp. vanilla 1 - 20 oz can crushed pineapple (do not drain) 1/2 cup chopped pecans (optional) Frosting: 2 cups powdered sugar 1 tsp vanilla 1/4 cup butter 3 oz cream cheese, softened 1/2 cup chopped pecans (optional) Mix all cake ingredients together until blended. Pour batter into large cookie sheet (15 x 11) that has been buttered but not floured. Bake at 350 degrees for 30 minutes. Mix all frosting ingredients (except pecans) until smooth. Frost cake while still warm. Sprinkle with pecans (if using).