01 -
Pat chicken dry and coat both sides with most of the Cajun seasoning, pressing in to adhere. Reserve a small amount of seasoning for later.
02 -
Heat olive oil in a large, deep skillet over medium heat. Add chicken and sear undisturbed for 3–4 minutes. Flip, reduce heat to low, and cook until just cooked through, about 4–5 minutes more. Transfer to a plate, tent with foil, and let rest.
03 -
In the same skillet, melt butter over medium-low heat. Add minced garlic and sauté, scraping up any browned bits, until fragrant—about 1 minute.
04 -
Pour in chicken stock, milk, buffalo sauce, and reserved Cajun seasoning. Stir well and bring to a low boil.
05 -
Add fettuccine to the sauce. Gently nudge noodles to submerge. Simmer on low, stirring occasionally, until pasta is al dente and most liquid is absorbed, approximately 8–10 minutes.
06 -
Add cubed cream cheese to the skillet. Stir continuously until completely melted and sauce is silky, about 5 minutes.
07 -
Stir in grated parmesan until fully incorporated and noodles are coated with a glossy sauce.
08 -
Slice rested chicken and lay over the pasta. Sprinkle with green onions and drizzle with extra buffalo sauce if desired. Serve immediately.