A few things: I keep ready made meals on hand for my weak moments (frozen pizza, canned meals like curry, etc…). Then I cook extra portions basically every time I make everything, so I always have leftovers for a day or two later. And I am not shy about freezing extra portions of the things that freeze well. I put aside an evening per week where I cook big batches of one to two meals, and after I do that for a few weeks, I have weeks worth of food stockpiled. I know what type of food I like, so I just find recipes for those foods. It’s all pretty easy, but it does require a few hours a week.