Creating Bok Choy and Shiitake Mushroom Stir-Fry is straightforward if you follow these simple steps:

1. Prepare the Ingredients: Start by washing the bok choy, trimming the ends, and cutting them in half. Slice the shiitake mushrooms and mince the garlic and ginger.
2. Heat the Pan: Place a large wok or skillet over medium-high heat. Add the vegetable oil and let it heat until shimmering.
3. Sauté Aromatics: Add the minced garlic and ginger to the pan, stirring them for about 30 seconds until fragrant, but be careful not to let them burn.
4. Cook the Mushrooms: Add the sliced shiitake mushrooms to the pan. Stir-fry them for 3-4 minutes until they are tender and have released some moisture.
5. Add Bok Choy: Toss in the halved bok choy. Stir-fry for another 2-3 minutes until the bok choy is vibrant and just wilted.
6. Season the Stir-Fry: Pour in the soy sauce and oyster sauce (if using). Stir well to coat the vegetables evenly. Season with salt and pepper to taste.
7. Finish with Sesame Oil: Drizzle the sesame oil over the stir-fry and give it one last mix to combine all the flavors.
8. Serve Immediately: Remove from heat and garnish with sesame seeds and sliced green onions before serving.

These steps will guide you in creating this incredible stir-fry with ease.