Begin by making the Cajun chicken by seasoning chicken cubes with spices.
Heat olive oil in a large, non-stick saute pan on medium heat. Add chicken and saute 5-7 minutes until chicken is cooked through. Remove and set in the oven to keep warm.
Bring a large pot of water to a boil and cook fettuccine according to package instructions or until al dente, about 7-8 minutes. Drain and rinse under cool water. Return to pot and toss with a little oil.
Meanwhile, whisk together the chicken broth and flour and set aside.
In the same pan you cooked the chicken, heat butter on medium heat. Add the mushrooms, onion, and garlic and saute 10 minutes.
Add wine and increase heat to medium/high. Boil 3 minutes.
Give the broth mixed with flour another good whisk, then add to the pan and bring to a boil. Reduce heat to medium and simmer 5 minutes, stirring occasionally.
Stir in half and half and cheese and simmer 15 minutes, stirring occasionally. or until sauce reaches the desired thickness.
Stir in fettuccine and chicken. Serve immediately.
Notes
I added the fettuccine and chicken when the sauce was thick enough that when I scrape the pan it slowly fell back. I hope that makes sense.
Recipe by The Spice Kit Recipes at https://www.thespicekitrecipes.com/fettuccine-white-wine-asiago/