Oven Temp: 350F / 180F / Gas mark 4
Toast sunflower seeds in oil in a skillet until golden, and season with a sprinkle of salt.
Boil macaroni for half the required time. (For small shells about 3 minutes.) Macaroni should still have a definite chew to it, because it will continue to cook in the oven.
Saute onions until light golden in color and add mushrooms, saute another 4 minutes. Stir all ingredients together well and spoon into a greased baking dish.
Bake for 20 minutes and cover with breadcrumbs. Bake another 10 minutes and garnish with raw green bell pepper or parsley.