Why? If I choose to eat a steak with some veggies on the side, where's the egg in that? Where are the beans? Yesterday I had a pizza. It had no egg or beans o

Why? If I choose to eat a steak with some veggies on the side, where's the egg in that? Where are the beans? Yesterday I had a pizza. It had no egg or beans on it, just bacon, cheese, pizza crust, tomato, etc.