Heat a deep-dish skillet with oil and sear the chicken to brown on both sides, skin-side down first 5–7 minutes.
Remove to a plate.
Brown the sausages in same skillet.
Remove to the plate with the chicken.
Add peppers and onions to the pan.
Cook 8–10 minutes until softened and lightly caramelized.
Stir in garlic and cook for 1 minute with 1 T. butter.
Pour in the chicken broth.
Scrape up all the flavorful browned bits from the bottom of the pan.
Return the meats, nestle the chicken and sausage into the peppers and onions.
Add paremsan cheese.
Cover and simmer gently for 20–25 minutes, or until the chicken reaches 165°F and the sausage is fully cooked.
Add 1 T. butter and continue simmering uncovered to concentrate the sauce.
Season with salt/pepper ad serve over angel hair pasta.