Stews are a great hands off way to cook a large amount of food without much hassle! And beef cheeks are a great low-fat alternative to chuck or short rib. I make my stew even more efficient in terms of energy and effort, by taking advantage of a vacuum pot.
I have a vacuum pot, but if you want to do this with a normal pot you can simmer on the stove or braise in a low oven for 2-3 hours.