A sweet and spicy seasoning rub for pork tenderloin and sweet potatoes features brown sugar, chili powder and cinnamon. They are roasted on one pan for an easy dinner with minimal clean up.
Preheat oven to 425°F. Mix brown sugar and seasonings in large bowl. Reserve 2 tablespoons. Add sweet potatoes, onions and butter to bowl; toss to coat well. Spread in large foil-lined shallow baking pan.
Roast 10 minutes. Rub pork tenderloin with reserved seasoning mixture. Push sweet potatoes and onions to one side of pan. Place pork tenderloin on other side.
Roast 25 to 30 minutes or until pork is desired doneness and sweet potatoes are tender. Slice pork and serve with sweet potatoes and onions.