Beans, rice, veggies. Put in frying pan, fill with water, turn to low simmer, walk away for 40-60 min. Until the water is gone, basically. I use ~140g dry beans, rice gets eyeballed depending on how hungry I am at the moment. Up to a quarter cup? Beans stay consistent due to soaking. Veggies are whatever I have on hand. I like to mix in leafy stuff after it's done though. That's about two meals, which will keep for a day, maybe two unrefrigerated. Flavor profile is muted and heavily seasoning dependent, so you can still have "variety" without having to plan ahead.