Yes onilkley but that's because the shitey over-processed versions of things all taste bland, have good mouthfeel, very little texture and are always consistent. There are reasons people with food issues choose them - it's not just because that's all they've ever been given to eat.
As I said up thread, I used to bake my own bloody beans! But as DS got older he started refusing different foods and not eating, particularly at nursery. So the range of foods I offered reduced (not consciously, I'm talking with the benefit of hindsight) to give him things that he wanted to eat.
Now, actually, the individual items of food in his range were actually pretty healthy, because all the foods he was weaned onto were healthy, but it was still a restricted diet because he didn't eat enough variety.
So yes, I started introducing the processed shitey things because I realised what he craved was predictability.
I now have an 8 yo with a mostly alright diet, but it's still far from good (and we are massively into food). But social issues are his top priority, so he now has one meal he eats in MacDonalds, one meal he eats in Frankie and Bennies, he will eat 2 (only ever 2) slices of pizza at a friends (previously he would only eat one brand).
Phase two is now expanding his range, and again, sometimes that means more processed food. For eg he eats pasta but not bolognaise sauce. I have been gently trying him with the M&S kids version of that because when he rejects lovingly prepared food, it upsets me. And guess what? Two weeks ago he announced he liked it, so last week I home cooked it. Tiny, tiny steps.
Anyway, that turned into a rant. Cathartic. Not all aimed at onilkley
but I will not add lack of calories to my child's other significant issues. His life at school is hard enough without going there hungry.