You can substitute soy milk and try adding some protein powder or peanut butter for some extra healthy goodness.

1 frozen banana, peeled and chopped
1/2 cup orange juice
1 Gala apple, peeled, cored and chopped
1/4 cup milk

1 frozen banana, peeled and chopped 1/2 cup orange juice 1 Gala apple, peeled, cored and chopped 1/4 cup milk

Blend together.