01 - Bring a large pot of generously salted water to a boil. Cook tortellini following package directions, adding broccoli florets to the pot during the last 2 minutes of cooking. Drain thoroughly and set aside.
02 - Season chicken pieces evenly with salt and black pepper.
03 - Heat olive oil in a large skillet over medium-high heat. Add chicken and cook for 5 to 6 minutes until golden brown and fully cooked, turning as needed. Remove chicken from the skillet and set aside.
04 - In the same skillet, melt butter over medium heat. Add minced garlic and sauté for 1 minute until fragrant but not browned.
05 - Reduce heat to medium. Pour in heavy cream, stirring to combine. Bring to a gentle simmer, then add Parmesan cheese. Stir until cheese is fully melted and sauce thickens, about 2 to 3 minutes.
06 - Return cooked chicken, drained tortellini, and broccoli to the skillet. Toss ingredients thoroughly to coat with the creamy garlic Parmesan sauce. Stir in crushed red pepper flakes if desired.
07 - Taste and adjust seasoning with additional salt and black pepper if needed.
08 - Serve hot, topped with extra Parmesan and fresh parsley if desired.