Have you ever wanted to tell someone to go crawl under a rock?
Well, this family took the idea to heart and did just that. And you thought your remodel was taking a long time? It took five years to build before they all climbed under. During the building process, the family lived in a tent. See the LA Times article, Cave Sleepers, for a full pictorial.
I don’t see a range or cook top in this photo. I wonder how they handle ventilation.
One annoyance they say bout the house is the occasional falling sand off the walls. That would be unusual seasoning for your food, don’t ‘cha think? Looks like the rear wall and kitchen ceiling is drywall. Maybe that is where the cooking surface is located.