3 pkgs. Mona frozen meat-filled tortollini
2 env. dry spaghetti mix
2 lg. cans tomato sauce
1 lg. can mushrooms
1 1/2 - 2 lbs. round or sirloin, ground
2 tbsp. butter

Brown ground meat; drain. Prepare sauce. Add dry mix and butter to tomato sauce. Simmer over low heat until thickened, stirring often. Add ground meat and mushrooms and set aside. Prepare tortollini as directed on package. After cooked, add spaghetti sauce mixture. Serve.