My wife and I have what we call 12 minute meals. They're not quite 12 minutes, because usually you've got to boil the water in the kettle first, but - they're meals that you can make and cook in the time you make macaroni, rice or spaghetti. A simple carbonara, a simple "cheats casserole" (Fry off some mince & onions, throw in some veg, cover in gravy, serve with rice), or a Macaroni Cheese (Done the proper way - grate cheese over the macaroni, mix).

Except for the Mac&Cheese, all of them require chopping an onion. I'd count them as relatively lazy meals that are also tasy and can feed a family.