Ok, So That Last Was Pretty Much Claptrap? and Now I'm Spouting Some Crap So It'll Go Off The Page Right Quick.
Tuna casserole should be its own food group.
It's nutritionally complete. Starch, via egg noodles. Vegetables come from the mushrooms in the soup and the peas you stir in. The tuna is protein, and I think there's milk in cream soups, right, so that's dairy. All the nutrients a growing person needs are immediately available. These nutrients may not be in quite the right proportions, but that's not tuna casserole's fault.
But it's only good if it's made properly, so the egg noodles go all crunchy on top. Soggy tuna casseroles should be thrown into tiny black holes and imploded.
Also: turkey bulgur stuff. Discuss!