Cook nearly any veggie in shallots, cream, whisked in egg, top with Parmesan, broil until brown.
Veggie gratin that isn't the most healthy but is better than nothing, and brilliant served as a side to steak. I recommend mushrooms, spinach or zucchini.
Was gonna say, that sounds pretty high in fat. Definitely better than a lot of the alternatives, but I'd only call it just this side of not healthy.
The real problem is that healthy food really is only good if it's fresh, and so it's a lot more inaccessible than shitty, processed either frozen or fast food.