Heat 1 tablespoon of butter and 2 tablespoons of olive oil in a large skillet over medium-high heat
Season both sides of each chicken breast with seasoned salt and a pinch of pepper
Add the chicken to the skillet and cook for 5-7 minutes on each side, or until cooked through
While the chicken is cooking, bring a large pot of water to a boil
Season the boiling water with a few generous pinches of kosher salt
Add the pasta and give it a stir
Cook, stirring occasionally, until al dente, about 12 minutes
Reserve 1/2 cup of pasta water before draining the pasta
Remove the chicken from the pan and transfer it to a cutting board; allow it to rest
Turn the heat down to medium and dd the remaining 1 tablespoon of butter and olive oil to the same pan you used to cook the chicken
Add the veggies (minus the garlic) and red pepper flakes to the pan and stir to coat with the oil and butter (refrain from seasoning with salt until the veggies are finished browning)
Cook, stirring often, until the veggies are tender, about 5 minutes
Add the garlic and a generous pinch of salt and pepper to the pan and cook for 1 minute
Deglaze the pan with the white wine
Continue to cook until the wine has reduced by half, about 3 minutes
Stir in the milk, heavy cream, and reserved pasta water
Bring the mixture to a gentle boil and allow to simmer and reduce for 2-3 minutes
Turn off the heat and add the Parmesan cheese and cooked pasta
Season with salt and pepper to taste
Garnish with Parmesan cheese and chopped parsley, if desired