Creamy Spinach and Sausage Pasta

1lb 'tube' pasta like Rigatoni or Penne
1lb bulk Italian Sausage
1 small onion, chopped
1 can diced tomatoes
1 package frozen creamed spinach
1 8oz package cream cheese, soften
2 cups Mozzarella cheese

• Preheat over to 350 degrees
  
• Cook pasta according to package directions
• Brown sausage and onion in large pan, drain
  
• Stir in tomatoes, spinach, cream cheese and 1 cup of mozzarella until all melted
  
• Mix cooked pasta into the spinach and sausage mixture
  
• Transfer to a large baking dish and cover
• Bake for 35 minutes at 350 degrees.
• Uncover and sprinkle with remaining cheese, bake for 5 minutes more or until cheese is melted

Words to the Wise:
This is a very yummy dish. We really, really enjoyed it. I used whole wheat penne pasta for this dish. And I couldn't find creamed spinach at the store. So I used on package of frozen chopped spinach, thawed and with all the water squeezed out and about 1/2 cup sour cream. It worked for me so feel free to use whatever.