01 - Bring a large pot of salted water to a boil. Cook tortellini according to package instructions, adding broccoli florets during the last 2 minutes of cooking. Drain thoroughly and set aside.
02 - Season chicken pieces evenly with salt and black pepper.
03 - In a large skillet, heat olive oil over medium-high heat. Add chicken and cook for 5 to 6 minutes or until golden and cooked through. Transfer chicken to a plate and reserve.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and sauté for about 1 minute until fragrant.
05 - Lower heat to medium and pour in the heavy cream, stirring to combine. Bring to a gentle simmer, add Parmesan cheese, and stir until cheese is melted and sauce has thickened, about 2 to 3 minutes.
06 - Add cooked tortellini, broccoli, and reserved chicken to the skillet. Toss gently to coat everything thoroughly with the sauce. Incorporate crushed red pepper flakes if desired.
07 - Taste and adjust salt and black pepper as needed.
08 - Serve immediately, garnished with extra Parmesan cheese and chopped parsley if desired.