Bookmarking this from Southern Living because most of these seem like meals that could be made fairly quickly with little cleanup, but would feed several people who would feel like they had a real meal.
Note these are not here cause they're healthy, necessarily (cheese. baby!). Or cheap. And not all of them are fast. Some of them take a while, but all are one-dish, and a fair proportion of them "cheat" by using premade ingredients (see "not cheap," above) which is one of my favorite sanity tricks when unannounced occasions strike.