Lightly oil a broiling pan, and add sausage slices in an even layer.

Arrange the sausage slices over the pizza, and sprinkle it with the cheese and pepper flakes.

Pour the dressing over them and add the onion, sausage slices, salt and pepper to taste.

Add sausage slices and simmer gently about 10 minutes.

Heat the oil in a large frying pan and saute the sausage slices on both sides until golden.

When ready to serve, add the sausage slices to the soup and mix well.

In a large skillet, saute the sausage slices over medium-high heat, tossing, until lightly browned on both sides, about 5 minutes.

Add the sausage slices and continue cooking until the meats are very tender, about 45 minutes longer.

Add the sausage slices, lemon, pepper flakes and onion.

Heat the oil in a wok or large skillet and saute the sausage slices for 5 minutes.