Costco's pizza works out pretty damn well on a just-get-some-calories-in-me-but-don't-make-me-cook basis, too, if you want something you can carry out. Two days of calories for $10.

I don't know what it is now, but Cici used to have $1.99 all you can eat pizza buffets on certain days of the week. This would have been in the mid 90s. Unbelievably (suspiciously?) cheap even for then.