This is more of an "idea" than a recipe. Even if you don't have big cooking plans, if the sun is out, put it to work for you! Roasted garlic is a great candidate for the solar oven, let it slowly roast for several hours.
Slice the top of the heads of garlic and place in your Sport graniteware pot. Drizzle the top with olive oil and place the covered pot in the oven. Your garlic will slowly roast and caramelize over the course of the day. My oven was cooking right around 200, if your oven is hotter you won't want to let it cook as long.
Use roasted garlic on pizzas, in hummus, mashed potatoes, or spread it on bread and top with goat cheese and sun-dried tomatoes as an appetizer.