Heat the olive oil in a large skillet over high heat. Once the pan is hot, add the green beans. Stir often for about 4 minutes until they start getting slightly blistered and brighter green.
1 tablespoon olive oil, 1 pound green beans
Add the mushrooms and continue cooking for another 3 minutes. The mushrooms should soften and release some moisture, but the beans should still have bite.
½ pound mushrooms
Reduce the heat slightly. Add the garlic and ginger. Stir constantly for about 30 seconds until fragrant. This is where people often go wrong. Garlic burns fast and can turn bitter quickly.
1 teaspoon ginger, 1 tablespoon fresh garlic
Stir in the soy sauce, oyster sauce, maple syrup, and sesame oil. Toss everything together well so the vegetables are evenly coated.
2 tablespoons soy sauce, 1 tablespoon oyster sauce, 1 tablespoon maple syrup, 1 tablespoon sesame oil
Let the sauce bubble for 1–2 minutes until it lightly thickens and looks glossy.
Taste and season with salt and black pepper if needed.
Salt and black pepper
Garnish with sesame seeds and chili flakes. Serve immediately while the beans are still slightly crisp.
Sesame seeds and chili flakes