Step 1: In a small bowl, whisk together the soy sauce, honey, rice vinegar, sesame oil, cornstarch, and red pepper flakes (if using). Set aside.
Step 2: Heat the olive oil in a large skillet or wok over medium-high heat. Add the ground chicken and cook, breaking it up with a spoon, until it’s no longer pink and is nicely browned (about 5-7 minutes). Drain any excess fat if necessary.
Step 3: Add the minced garlic and grated ginger to the skillet with the cooked ground chicken. Sauté for 1-2 minutes until fragrant, being careful not to burn the garlic.
Step 4: Add the chopped broccoli florets and bell pepper strips to the skillet. Stir-fry for 3-5 minutes, until the vegetables are crisp-tender.
Step 5: Give the prepared sauce a quick whisk again and pour it over the chicken and vegetables. Cook, stirring constantly, until the sauce thickens and coats everything evenly, about 1-2 minutes.
Step 6: Remove from heat. Stir in the chopped green onions. Taste and adjust seasoning if needed. Serve immediately over steamed rice or noodles, garnished with sesame seeds if desired.