Set the Sun Oven out to preheat
Combine water, rice, and ¼ teaspoon salt in a dark pot, cover and place in Sun Oven, Cook until the rice is tender. About 1 hour.
While the rice is cooking, heat the olive oil in a skillet over medium-high heat. Add celery and onion and sauté until the onions are translucent, about 5 minutes.
Add the asparagus, stir to combine and sauté for another 3 minutes.
Add the cheese to the skillet, breaking it up as you stir to coat the vegetables. Season to taste with salt and pepper.
Combine the vegetable cheese mixture with the rice and fresh basil in a large bowl.
Spread the mixture in an oiled casserole dish, cover tightly with tin foil and a dark tea towel.
Place in Sun Oven and bake until heated through. About 45 minutes to 1 hour.
Serve hot,