Cooking Steps
Heat the oil from the sun-dried tomatoes in a large skillet over medium heat until shimmering. Add the chopped onion and minced garlic. Cook, stirring often, until softened, 3 to 4 minutes.
Add tomato paste and sun-dried tomatoes and cook, stirring constantly, until tomato paste turns slightly dark red, about 2 minutes.
Add chicken broth, heavy whipping cream, chopped fresh basil, kosher salt, dried Italian seasoning, garlic powder, and crushed red pepper. Bring soup to a simmer over medium heat, stirring occasionally, about 12 minutes.
Add uncooked medium shell pasta and reduce heat to medium-low; cook, stirring occasionally, until pasta is al dente, about 12 minutes.
Reduce heat to low, and add chopped fresh baby spinach, shredded rotisserie chicken, cream cheese, and Parmesan, finely shredded. Cook, stirring often, until cream cheese and Parmesan are melted and chicken is heated through, about 5 minutes.
Garnish with additional Parmesan,finely shredded, chopped fresh basil, and red pepper. Serve immediately.
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