In the same pan, melt remaining butter, add garlic, and cook until fragrant. Stir in heavy cream, chicken broth, Parmesan for sauce, cream cheese, Italian seasoning, basil, and red pepper flakes. Simmer until slightly thickened.
Add cooked chicken and spaghetti to the sauce. Mix well and top with shredded cheeses. Cook until cheese melts and everything is heated through.
Garnish with chopped parsley before serving.
Notes
For extra spice, increase Cajun seasoning or red pepper flakes.