its kind of cheating (not from scratch as such) but a quick and cheap meal is to brown off some chicken with some diced onion, spring onion, peppers and carrots and add a jar of stir-fry sauce. add some of those wok noodles and you're done. maybe serve with some rice.
also if you get a jar of cajun spice you can brown off some chicken and add the spice and cook the chicken. slice up some spring onions/ peppers/ lettuce whatever you like and then warm some tortilla wraps. it means your family can make their own wraps and the kids usually enjoy having the choice of what they add. (maybe use plain chicken if it'd be too spice for them). the good thing is you can do this as a snack or add to it to make a meal.
home made burgers are nice as a treat and you know exactly whats going in which is good. you can also 'hide' veggies in them such as grated carrot, onion whatever, and use really lean mince. but mine always seem to fall apart so you might want to search for a recipe for them!
i know these are kinda cheats but hope they help x