Gather all ingredients.
Heat the oil from the sun-dried tomato jar in a large Dutch oven over medium heat until shimmering.
Add the onion and garlic; cook, stirring frequently, until softened, about 3 to 4 minutes.
Add the tomato paste and sun-dried tomatoes; cook, stirring constantly, until the tomato paste is slightly deeper red in color, about 2 minutes.
Stir in the broth, cream, basil, salt, Italian seasoning, garlic powder, and crushed red pepper; bring to a boil over medium heat, stirring occasionally, about 12 minutes.
Add the pasta and reduce the heat to medium-low; cook, stirring occasionally, until the pasta is al dente, about 12 minutes.
Reduce the heat to low, and add the spinach, chicken, cream cheese, and Parmesan; cook, stirring often, until the cream cheese and Parmesan are melted and the chicken is heated through, about 5 minutes.
Garnish with additional Parmesan, basil, and red pepper. Serve immediately.
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