Really depends what you cook/eat. My meals yesterday (on a cut right now, so trying to stay under 1700): coffee, greek yogurt w/ granola and berries, coffee, store-bought hummus, pita, cheese, apple, coffee, chicken breast, seasoning, 10-minute instant rice, soy sauce, coffee. Of these, only the chicken takes anything resembling "cooking". I probably spent a grand total of 20 minutes in either food preparation and cleanup. Or for the really, really lazy, there's Soylent, which is cheaper and easier than pretty much any alternative.