Slice the chicken breast into thin strips.
Heat olive oil in a large pan over medium-high heat.
Add minced garlic and ginger; sauté for 1 minute.
Add the sliced chicken; season with salt and pepper.
Cook the chicken for about 5-7 minutes until browned.
Toss in the mixed vegetables and stir well.
Drizzle soy sauce over the mixture; stir to combine.
Cook for an additional 3-5 minutes until vegetables are tender.
Sprinkle sesame seeds on top (if using).
Serve hot over cooked rice or noodles.