Instead of serving traditional spaghetti to our daughter we use spaghetti squash instead of regular noodles. She loves it and it is very easy to cook. Just buy a spaghetti squash from the store, cut in half, put a small dab of butter and your favorite seasonings, cover in aluminum foil and bake at 350 until the sides are soft. We put the squash on a plate and cover it in traditional spaghetti sauce (we occassionally include ground turkey and chicken into the sauce).
We also use the crockpot quite a bit, we always place a ton of carrots with whatever meat we are cooking for our daughter - we will save the leftover carrots and serve them to her over a couple of meals. We found that the traditional carrots that require peeling taste better than the bite-sized carrots that are so popular.
For lunch we often just steam frozen vegetables and serve them with luncheon meat or chicken (we will grill extra breasts on Sunday night and reheat them during the week).
We do not give our daughter anything with refined sugar or juice so she loves loves fruit. Her favorite fruit is mangos so don't be afraid to try something different.