HEAT oven to 400ºF.
HEAT large nonstick skillet on medium heat. Add meat; cook 5 min. or until browned on all sides, turning occasionally. Remove meat from skillet, reserving meat drippings in skillet; place meat in 13x9-inch baking dish. Mix mustard and thyme; spread onto meat.
BAKE 20 to 25 min. or until meat is done (145ºF). Transfer to carving board; tent with foil. Let stand 5 min. Meanwhile, prepare stuffing as directed on package, reducing the spread to 1 Tbsp.
ADD broth to same skillet. Bring to boil on high heat. Add Neufchatel; cook on medium-low heat 2 min. or until Neufchatel is completely melted and mixture is blended, stirring constantly.
CUT meat into thin slices. Serve topped with Neufchatel sauce along with stuffing and beans.