In a large bowl combine potatoes, onion, garlic, olive oil, salt, pepper, and rosemary. Toss to coat.
2 lbs potatoes, 1 large white onion, 3 tbsp garlic, 4 tbsp olive oil, 1 1/2 tsp salt, 1/2 tsp black pepper, 1 tbsp dried rosemary
Pour the mixture into a large roasting pan.
Roast vegetables at 475 degrees for 25 minutes, stirring once.
Add chicken, tossing once more to coat.
1 lb boneless
Roast 15 minutes longer, or until chicken is cooked through.
Evenly distribute spinach over the chicken and vegetables.
1 10 oz pkg fresh spinach
Roast 5 more minutes, or until spinach is wilted. Stir again.
Sprinkle with the shredded Parmesan cheese, and serve.
1/4 cup shredded Parmesan cheese