Debbie's Ground Beef Surprise

Dice onions and saute in a little margarine until tender. Add ground beef and continue to saute until beef is brown. Drain and season to taste. Add tomato soup to beef mixture and simmer. Meanwhile, prepare fettuccine according to package directions. Prepare Alfredo Sauce using margarine and milk according package directions. Mix fettuccine and Alfredo Sauce together. Arrange pasta mixture around the outside of a casserole dish leaving a hollow place in the center. Fill center with ground beef mixture. Serve.