Wash and cut the cauliflower.
Finely chop the onion, garlic, and ginger.
Heat the pan and add cooking oil.
Once the oil is slightly hot, add in onion, garlic, and ginger. Mix well.
Once the mix is slightly brown, add in the cauliflower.
Mix well, cover, and lower the heat.
After 5-7 minutes, the cauliflower will turn soft. Keep the heat low.
Add in mushrooms, vinegar, and soy sauce. Mix well.
Keep heat low and cover for another 5 minutes.
Sprinkle the roasted sesame seeds for garnishing.
Serve with steamed rice or noodles. Enjoy!