01 -
Bring a large pot of salted water to a boil. Cook penne pasta according to package instructions until al dente. Reserve 1/2 cup cooking water, then drain pasta and set aside.
02 -
Heat 1 tablespoon olive oil and 1 tablespoon butter in a large skillet over medium-high heat. Season chicken with salt, pepper, and Italian seasoning. Sear chicken for 6-8 minutes per side until golden brown and the internal temperature reaches 165°F. Transfer chicken to a clean plate and let rest for 5 minutes before slicing into bite-sized pieces.
03 -
Add 1 tablespoon butter to the same skillet. Sauté diced onion and minced garlic over medium heat until fragrant and translucent, about 3 minutes.
04 -
Add sliced mushrooms to onions and garlic. Cook for 5 minutes, stirring occasionally, until mushrooms are browned and moisture has evaporated.
05 -
Add chopped asparagus to the skillet and sauté for 3-4 minutes until bright green and just tender.
06 -
Pour in heavy cream, stirring to combine with vegetables. Bring to a gentle simmer and cook for 3-4 minutes until sauce begins to thicken.
07 -
Add grated Parmesan cheese to the sauce, stirring until fully melted. Season with additional salt and pepper if desired. Thin sauce with reserved pasta water as needed.
08 -
Return cooked penne and sliced chicken to the skillet. Toss gently until pasta and chicken are evenly coated with creamy sauce and heated through.
09 -
Portion pasta into warmed bowls. Garnish with extra Parmesan and cracked black pepper if desired.