Get a crock pot. Make perpetual stew.

Start off simple, you're making a basic stew, lots of hard veggies and some meat. Not poultry. Sausage, beef, pork etc is fine. Chop it up. Add some extra flavourings if you want - herbs, tinned tomatoes whatever. A bit of water to just cover everything.

Do that first thing in the morning day one. By evening you will have a delicious stew.

Do not turn your Crockpot off. Add some more ingredients. Whatever you have to hand (more meat if you want, but no poultry, no fish). More veggies? Potatoes? Beans? Go right ahead.

Tomorrow you'll have a new, different are for lunch with near zero effort. And for dinner too. You can buy really cheap veggies, cuts off meat etc, and they'll come out great.

Each day, just chuck a bit more in. However if that Crockpot ever turns off for more than a few minutes, start again. You can keep what you've already made (freeze it) but start again for the next batch.