– 8 oz. ½ of 1 lb. box rigatoni pasta – 1 lb. hot italian sausage – ½ medium yellow onion diced (about 1 cup) – ¼ cup salted butter – 2-3 garlic cloves minced – ½ teaspoon Italian seasoning – ½ cup chopped sundried tomatoes in oil and herbs – 1 ½ cups heavy cream – 2-3 cups fresh baby spinach – Salt and pepper to taste (optional)