Cheesy Sausage Potatoes

3 pounds potatoes, peeled and cut into 1/4-inch slices
1 pound bulk pork sausage
1 medium onion, chopped
1/4 cup butter, melted
2 cups (8 ounces) shredded cheddar cheese

Place potatoes in a large saucepan and cover with water. Bring to a boil. Reduce heat; simmer, uncovered, for 8-10 minutes or until tender. Meanwhile, crumble sausage into a large skillet; add onion. Cook over medium heat until meat is no longer pink; drain if necessary.

Drain potatoes; arrange in an ungreased 13-in. x 9-in. x 2-in. baking dish. Drizzle with butter. Add sausage mixture and stir gently. Sprinkle with cheese. Bake, uncovered, at 350° for 5-7 minutes or until cheese is melted. Makes 6-8 servings.