This fiber-rich meal is a great low-fat alternative to red meat. It's also fun for older kids because they can help prepare and select their own toppings. For the wee ones (under 12 months), skip the tomato paste, salsa and spices. But load up on full-fat cheese for your toddlers 2 and under. You can also serve it in small pieces for mini fingers or as a salad so Mom and Dad can enjoy a low-carb version.