Do you know any good veggie-based recipes that even kids will love?

Try eggplant lasagna (had tried this one, tasted really good). Add diced carrot on bolognese sauce for your spaghetti. You can try Spinach Quiche as well, or try mix vegetable with tasty thing like cheese to bring up their appetite. http://allrecipes.com/recipe/20876/crustless-spinach-quiche/