In a bowl, combine the chicken chunks with kosher salt, black pepper, Italian seasoning, smoked paprika, and all-purpose flour. Mix until evenly coated.
Heat butter and olive oil in a skillet over medium-high heat. Sauté the seasoned chicken until browned and cooked through, about 5-7 minutes. Set aside.
In the same skillet, add a splash of olive oil, then add minced garlic, shallot, and sun-dried tomatoes. Sauté until softened and fragrant, about 2-3 minutes.
Stir in the tomato paste and chicken broth, scraping brown bits off the skillet. Simmer for about 2 minutes.
Add the cheese tortellini to the mixture and simmer gently for about 3-4 minutes until al dente and coated.
Stir in the cooked chicken, spinach, heavy cream, and grated Parmesan cheese. Mix until creamy and well combined. Serve hot, garnished with fresh basil and extra Parmesan.
Notes
Serve with a light salad or warm garlic bread for a complete meal.