Begin by preparing the shirataki noodles. Drain and rinse the noodles thoroughly under cold water, then pat them dry with paper towels. Set aside.
- In a large skillet or wok, heat 1 tablespoon of olive oil or sesame oil over medium-high heat.
- Add the sliced chicken to the pan and stir-fry for 5-7 minutes, until the chicken is cooked through and browned. Remove the chicken from the pan and set it aside.
- In the same pan, add the bell pepper, carrot, onion, and garlic. Stir-fry for about 3-4 minutes, until the vegetables start to soften but still retain some crunch.
- Add the broccoli florets to the pan and cook for an additional 2-3 minutes, until the broccoli is tender-crisp.
- While the vegetables are cooking, make the stir-fry sauce by whisking together the soy sauce, oyster sauce (if using), rice vinegar, honey, sesame oil, and crushed red pepper flakes (if desired) in a small bowl.
- Add the cooked chicken back to the pan, followed by the shirataki noodles. Pour the stir-fry sauce over the chicken and vegetables and toss everything together, cooking for an additional 2-3 minutes until everything is well-coated and heated through.
- Garnish with sesame seeds and chopped green onions before serving.