Cook and drain manicotti shells. Cook beef in oil in large skillet
over medium high heat until brown, stirring to separate meat; drain
fat. Stir in onion powder, salt andpepper. Stir in 1 cup of the
spaghetti sauce; cool and set aside. Reserve 1/2 cup of the ground
beef mixture. Combine remaining beef mixture with cheese in large
bowl. Stuff into manicotti.
Arrange in greased 13x9" pan. Combine remaining spaghetti sauce with
reserved beef mixture in small bowl; blend well. Pour over manicotti.
Cover with foil. Bake in preheated 350° oven 20-30 minutes or until
hot. Garnish as desired.