because my kids are picky eaters and I really need them to eat they end up with bell and evans chicken nuggets and those alexa roasted potatoes plus some vegetable at least 4 meals a week . How bad is that? I already don't feel good about it but really how bad?

I hear you but not all baked chicken nuggets (or fish sticks or quorn patties) are junk. DiFara's pizza rocks as does Franny's. Not all kids are the same and not all will be adventurous. A recent NYT article stated that genetics may be behind the "picky eater". As someone who will try almost any food, and always has a variety of food available, I think they are on to something.