01 - Heat olive oil in a large skillet over medium-high heat. Add chicken pieces, season with salt and pepper, and cook for 5-6 minutes, flipping occasionally, until golden brown and fully cooked. Remove from pan and set aside.
02 - In the same pan, add 1/4 cup of water and broccoli florets. Cover and steam for 2-3 minutes until slightly tender but still crisp. Remove excess water.
03 - Reduce heat to medium-low. Add butter to the pan. Once melted, stir in minced garlic and cook for 30 seconds until fragrant.
04 - Stir in soy sauce, lemon juice, and red pepper flakes (if using). Mix thoroughly.
05 - Return cooked chicken to the pan and toss to coat in the garlic butter sauce. Cook for an additional 1-2 minutes until well coated. Stir in the broccoli, ensuring even distribution.
06 - Remove from heat. Garnish with sesame seeds and chopped parsley, if desired. Serve warm.