I've got a 10" non-stick, a 6" cast iron, a large'ish pressure cooker, a small pot, and a submersion blender.
I've cooked all my own meals since my early teens and by my math that's the minimal gear needed to create anything except cookies. I don't know what I'll be eating until I've done a lap around the super market, but all I come up with now is... burritos. Breakfast, lunch, and dinner. Arg. Sometimes it's kale and sietan, sometimes it's beef and quinoa, sometimes I eat them straight from the bowl, but they're all 'random things fried together that go better with hotsauce in a wrap.'
The issue seems to be convenience. Washing more than one pot or pan per meal puts me past one dump/refill of the tanks per week. Limited counter space makes lots of prep work prohibiting. Living off of rice or pre-made/restaurant foods is ill advised. I want to aim for ~1/3rd protein based food, ~2/3rds fibrous vegetables (non-grains, mostly) per meal.
How have you guys found ways to cook proper/healthy foods in your given limitations?