Here is something for you to look at with your picky child in mind (I have a picky one and a not-so-picky one):
http://www.recipezaar.com/cookbook.php?bookid=93092
This is one of my favorite collections I put together of others' recipes.
http://www.recipezaar.com/cookbook.php?bookid=224820
Please don't forget, you can substitute ground beef for ground turkey or ground chicken.
You can add veggies into almost anything.
You can add a can of white beans, bell pepper, onion, garlic and zucchini to spaghetti sauce.
Add black beans, bell peppers, zucchini and onion to taco meat.
You could look at what other menus people plan for the week in the forums:
http://www.recipezaar.com/bb/viewforum.zsp?f=7
If you can't tell, I really like this site. I have been with it for seven years. Email me if you have questions.
Good luck!