ilovelucy what if you just have lots of carrots with a meal? Nothing green but still healthy. My rule is there always must be some sort of veg.
Nothing wrong with baked beans as part of a balanced diet, or fish fingers (as others have said). Nothing wrong with the occasional burger and chips either, it's more about portion sizes, balance, and at least 5 fruit and veg a day.
LowLevel you can make lots of nice 'flavourings' and sauces for noodles yourself, but ultimately, the occasional sachet of powder flavouring is not going to ruin an otherwise healthy diet 
Another tip: don't buy stir fry sauces and curry sauces, make your own.
Stir fry sauces can be made with a base of garlic, ginger, cornflour, soy sauce and water. Anything else that you want to add can be added too (lemon juice for lemon flavouring, chillies, fish sauce, thai curry paste, coconut milk/cream, black beans, miso etc etc)
Curry pastes can be made at home with onions, gallic, ginger, spices, fresh herbs, yoghurt (I always thicken my curries with greek yoghurt) etc etc.
I tihnk ultimately it's really good to get kids involved in the kitchen and cooking. DS has just made us a chickpea and carrot curry with rice. Very simple. He cooked red lentils in water, added chopped carrots, a tin of chickpeas, various spices (who knows?) four cloves of garlic and at the end when most of the water had boiled away he stirred in some greek yoghurt (I don't know how much, I wasn't there). It tastes lovely, and I'm sure it is healthy. Mostly I like it because I didn't make it.