as you are cooking your pasta...
in a very large skillet, cook the sausage and onion together until the sausage is fully cooked and most of the oil has evaporated
remove the sausage and onion - place them in a bowl nearby
to the warm skillet, add broth, cream, cheese, and spices
mix well with the bits at the bottom of the skillet and cook on medium heat for about 3 minutes or until it thickens up a bit
Add the drained sun-dried tomatoes, sausage, and onion - stir in
fold in the spinach and finally the pasta
serving suggestion: serve with garlic bread and salad