01 -
Heat olive oil in a large pot or deep skillet over medium heat. Add diced chicken breasts and cook for 5-6 minutes, stirring occasionally, until chicken is browned on all sides and nearly cooked through.
02 -
Sprinkle ranch seasoning mix evenly over the chicken. Stir well to coat all pieces and continue to cook for 1 minute to allow the flavors to develop.
03 -
Add buffalo sauce and stir to coat the chicken. Pour in chicken broth, scraping the bottom to release browned bits. Bring the mixture to a simmer.
04 -
Stir in uncooked penne pasta, ensuring it is completely submerged. Cover with a lid and reduce heat to medium-low. Cook for 10-12 minutes, stirring occasionally, until the pasta is tender and most liquid is absorbed. Add extra broth if needed.
05 -
Reduce heat to low. Pour in heavy cream and combine. Add cheddar and Parmesan cheese in batches, stirring until melted and the sauce is smooth. Adjust consistency with additional cream or broth if desired.
06 -
Remove from the heat and let stand 2-3 minutes to thicken. Garnish with chopped green onions and serve hot. Offer extra buffalo sauce on the side if desired.