Quesadillas are quick and easy. We use whole wheat tortillas and just about any filling with cheese. Heat up a skillet, spray lightly with oil, and thinly spread half of the tortilla with something mushy (mashed beans, thick veggie puree, etc) and top with some cheese. Fold in half and put in skillet, turn over when it's lightly brown. Mmmm...
We made eggy bread grilled cheese sandwiches for Tyler. Make the sandwich with cheese and whatever filling, dip the outside in egg, then fry each side in a skillet.
I'm stealing this from a thread we have going on the toddler board...maybe one of these would work? Mash any kind of cooked veggie with potato, add egg and a bit of flour to bind, make patties, and fry lightly in oil. You can also do the same with shredded veggies and omit the potato if the veggies are shredded finely enough. If you use shredded, make sure you squeeze out any water before adding the egg and flour or they won't stick together.