Cheese-Topped Beef Bake

1 package (16 ounces) medium pasta shells
1 pound ground beef
1 jar (26 ounces) spaghetti sauce
1 envelope taco seasoning
1 carton (8 ounces) spreadable chive and onion cream cheese
1 cup (8 ounces) sour cream
1 cup (4 ounces) shredded cheddar cheese

Cook pasta according to package directions. Meanwhile, in a large skillet, cook beef over medium heat until no longer pink; drain. Stir in the spaghetti sauce and taco seasoning. In a small bowl, combine cream cheese and sour cream; set aside.

Drain the pasta; stir into beef mixture. Transfer to a greased 13-in. x 9-in. x 2-in. baking dish. Spread with cream cheese mixture; sprinkle with cheddar cheese. Bake, uncovered, at 350° for 25-30 minutes or until cheese is melted. Makes 8-10 servings.