01 - Bring a large pot of salted water to a boil. Add tortellini and cook according to package directions, adding the broccoli florets during the last 2 minutes of cooking. Drain well and set aside.
02 - Lightly season chicken pieces with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and sauté until golden and thoroughly cooked, about 5 to 6 minutes. Remove the chicken from the skillet and set aside.
04 - Add butter to the same skillet. Once melted, add minced garlic and sauté until fragrant, about 1 minute.
05 - Reduce heat to medium. Stir in heavy cream and bring to a gentle simmer. Gradually add Parmesan cheese, stirring until melted and sauce begins to thicken, 2 to 3 minutes.
06 - Add cooked tortellini, broccoli, and chicken to the skillet. Toss gently to coat in the sauce. Stir in red pepper flakes if desired.
07 - Taste and adjust seasoning with additional salt and pepper as needed.
08 - Serve hot, topped with extra Parmesan cheese and chopped fresh parsley if preferred.