01 - Bring a large pot of salted water to a boil. Cook tortellini according to package directions, adding broccoli florets during the last 2 minutes of cooking. Drain well and set aside.
02 - Pat chicken breast pieces dry and season generously with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken pieces and cook until golden brown and cooked through, about 5 to 6 minutes. Remove chicken from skillet and set aside.
04 - Add butter to the same skillet and reduce heat to medium. Sauté minced garlic for 1 minute until fragrant, stirring frequently.
05 - Pour heavy cream into the skillet and stir to combine. Bring to a gentle simmer, then add Parmesan cheese. Stir until cheese is melted and sauce is smooth and slightly thickened, about 2 to 3 minutes.
06 - Return cooked tortellini, broccoli, and chicken to the skillet. Toss ingredients until well coated in the creamy sauce. Stir in crushed red pepper flakes if desired.
07 - Taste and adjust the seasoning with additional salt and black pepper as needed.
08 - Serve hot, garnished with extra Parmesan cheese and chopped fresh parsley if desired.