Melt Spread in 12-inch nonstick skillet over medium-high heat and brown steak in two batches. Remove steak and set aside.
Cook mushrooms and shallots in same skillet, stirring occasionally, 5 minutes or until vegetables are tender. Stir in Sauce, horseradish and lemon juice. Reduce heat to medium and cook, stirring occasionally, 5 minutes. Return steak to skillet and cook 1 minute or until heated through. Serve, if desired, over hot cooked noodles.