Spaghetti en Franco

1 package cooked spaghetti (1 1/2 cups)
1 1/2 cups gluten, small cubes
1/2 cup chopped onions
1/2 cup finely chopped tomatoes
2 tablespoons margarine
1 1/2 cups thin cheese sauce

Fry gluten and onions in margarine. Add the tomatoes and let simmer. Add the spaghetti and cheese sauce. Place in greased pan and bake at 350°F. for 1/2 hour.