1. In 12 x 8 x 2-inch baking dish coated with cooking spray combine potatoes and onion. Sprinkle with salt and pepper. Dot with butter. Tightly cover with foil. Bake at 375F about 50 minutes or until potatoes are tender.
2. Meanwhile, cook MORNINGSTAR FARMS® HOT & SPICY VEGGIE SAUSAGE PATTIES according to package directions. Cut patties into fourths.
3. Remove foil from baking dish. Stir patties into potato mixture. Broil 4 to 6-inches from the heat for 6 to 9 minutes or until potato mixture is just beginning to brown. Sprinkle with cheese. Let stand for 1 minute or until cheese melts.