F.R.
For a quick lasagna buy the frozen big cheese ravioli. Dump it in the baker, dump in a can of spaghetti sauce and cover with cheese and foil and bake it up. You add a couple slices of garlic bread (frozen is easier) and a side salad and it'll feed a lot really quickly with very little effort. *You don't have to worry about adding the ricotta cheese since it's inside the ravioli. And there's no make ahead with that either.
Chili is easy and freezes well.