Lightly grease inside of GoSun cooking tray with a little olive oil. In large bowl, combine olive oil, onion, sweet potato, sausage, and apple pieces. Toss to coat.
Combine all spices, then sprinkle spices mixture over other ingredients and gently toss to distribute the spices.
Spoon mixture into prepared GoSun cooking tray, being careful to not overfill. Bake for 25 to 30 minutes in full sun, until potatoes and onions are tender.
Recipe by 50 Campfires at https://50campfires.com/2-grilling-recipes-to-make-with-the-sun/