Place brisket in crockpot.
In a small bowl, combine barbecue sauce, horseradish, mustard, salt and pepper. Pour over brisket. Cover and cook on LOW for 7 to 8 hours or until brisket is tender. Cook noodles according to package directions; drain.
Slice meat. Arrange sliced meat on noodles and top with sauce.
Servings: 4