This is one of the few areas where my organisation system holds strong.
I don’t meal plan. But I stock up on ingredients. And in this stage of life I don’t spend longer than 30 mins making dinner, and seldom even as long as that.
I keep meat in single portions (flat, thin, quick to defrost) in the freezer. If I make sauces, ragus etc I make extra to freeze, but I’m not snobby about jars. And I have a selection of frozen veg.
Lunches are sandwiches, fruit, salads and fresh veg so I buy a weeks worth.
Breakfast is cereal, toast, eggs, or porridge.
I organise my food storage so that I can see at a glance where the gaps are and I just fill those. I keep a designated space for my off-piste selections but if I know I can only fit two random jars that take my fancy I won’t buy more than that.
I don’t make a shopping list. I just take pictures on my phone and fill the gaps.
I shop once a week, get a milk delivery twice a week.
We eat soft fruit before hard, and I defrost bread for the end of the week- the crust is noticeably chewier but that’s all.