Heat oven to 375°F. Spray 2-quart round casserole with cooking spray.
Spread sauerkraut evenly in bottom of casserole. In medium bowl, stir chili sauce and mayonnaise until blended. Add corned beef; toss until evenly coated. Spoon over sauerkraut. Cover; bake 30 minutes.
Meanwhile, separate dough into 10 biscuits; cut each biscuit crosswise in half. Arrange biscuit pieces over partially baked casserole. Bake uncovered 18 to 20 minutes or until biscuits are golden brown. Sprinkle cheese over top. Bake 3 to 5 minutes longer or until cheese is melted.