Preheat oven to 400 degrees.
Season chicken with chicken seasoning, Italian seasoning, salt, and pepper.
Melt half of the butter in a cast iron or regular skillet over medium-high heat. Add chicken and sear both sides until golden brown, about 3-4 minutes per side; set aside.
Add the remaining butter, mushrooms, garlic, and red pepper flakes, and cook until fragrant, about 1-2 minutes.
Stir in chicken broth, heavy cream, white wine, sun-dried tomatoes, Parmesan, thyme, oregano, and basil. Add the flour and stir. This will thicken up the sauce a bit.
Bring to a boil; reduce heat and simmer until slightly thickened, about 3-5 minutes. Return chicken to the skillet.
Place into oven and bake for 25-30 minutes.
Cool before serving.