Mac and Cheese

I want to be a good mom. I want my baby to be healthy. I want him to eat something other than Macaroni and Cheese! He wants it for 3 meals a day, and he eats 3 or more helpings! I've tried all kinds of other things, but the only things he makes exceptions for are hot dogs, french fries and applesauce (or candy). Anyone have any tips to encourage more variety in a 2-year-old's diet?