Wash the bok choy thoroughly and cut it into bite-sized pieces.
Thinly slice the onion, carrot, and garlic.
Heat cooking oil in a pan and sauté the garlic.
Add the onion and carrot and stir-fry.
Add the bok choy and stir-fry quickly over high heat.
Season with salt and pepper.
Drizzle a bit of sesame oil and finish.