01 - Bring a large pot of salted water to a boil. Add cheese tortellini and cook according to package directions, adding broccoli florets during the last 2 minutes. Drain well and set aside.
02 - While pasta cooks, season chicken pieces generously with salt and black pepper.
03 - In a large skillet, heat olive oil over medium-high heat. Add chicken and sauté until golden brown and cooked through, about 5 to 6 minutes. Remove chicken and set aside.
04 - In the same skillet, add unsalted butter. Once melted, add minced garlic and sauté for about 1 minute, until fragrant.
05 - Reduce heat to medium, pour in heavy cream, and stir to combine. Bring to a gentle simmer, then add Parmesan cheese, stirring continuously until cheese melts and sauce thickens, about 2 to 3 minutes.
06 - Return cooked chicken, tortellini, and broccoli to the skillet. Toss to evenly coat everything with the creamy sauce. Stir in crushed red pepper flakes if desired.
07 - Taste and adjust seasoning with additional salt and black pepper as needed.
08 - Serve hot, garnished with extra Parmesan cheese and chopped fresh parsley if desired.