Just do convenience foods. Go to the frozen section and get fish fingers, wedges, oven chips, chicken goujons and kievs, frozen pizzas, frozen pasties, frozen roast potatoes, frozen jacket potatoes, frozen yorkshire puddings and the frozen small joints of meat that are already in the foil container, and frozen peas and sweetcorn and broccoli.
Then get in the microwaveable rice sachets, jars of pasta sauce, a big bag of penne, fresh salad or coleslaw kits, a bottle of salad dressing, loads of tins of soup and beans, tins of chicken curry and beef chilli, a couple of quiches, a loaf of sandwich bread, bags of pre grated cheese or cheese slices and some lunch meat.
You can do fish fingers chips and peas, chicken goujons and wedges and veg, quiche and salad, jacket potatoes with beans and cheese, sandwiches or toasties if you have a toastie machine with salad, roast with potatoes yorkshires and veg on a Sunday, chilli or curry with rice, pasta with sauce or pasta bake if you want to push the boat out, a pasty and soup, pizza chips and salad….