30 mins for lunch, not supposed to leave the place (but being on the move between sites, there's no biggie getting a pie or somesuch.
I cook a stew, or chop suey, or Indian on Sunday night, and 600-700g of meat with veges and the sauce gets us fed Sunday, and me lunches to Wednesday. Better half does a couple of stir fries, spag bol, or lasagne during the week, which usually makes up the other two.
If we have corned beef, or roast lamb will have a meat and sauce (ketchup) sandwich, same with roast chook...usually have a tin of tuna or sardines in drawer.