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 time. Drain well and set aside.
02 - Pat chicken pieces dry and season evenly with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook until golden brown and fully cooked, about 5 to 6 minutes. Transfer cooked chicken to a plate and set aside.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and cook for 1 minute until fragrant, stirring constantly to prevent burning.
05 - Reduce heat to medium. Pour in heavy cream, stirring to combine. Let mixture come to a gentle simmer, then stir in Parmesan cheese. Continue stirring until cheese is fully melted and sauce thickens, about 2 to 3 minutes.
06 - Add cooked tortellini, broccoli, and chicken to the skillet. Toss to evenly coat all ingredients in the creamy sauce. Stir in crushed red pepper flakes if desired.
07 - Taste and adjust seasoning with additional salt and pepper if necessary. Serve hot, garnished with extra Parmesan and chopped parsley as preferred.