Preparation 🍳
1. Preheat Oven: Preheat your oven to 375°F (190°C). 🕒🔥

2. Sauté Filling: In a large skillet, heat the olive oil over medium heat. Add the finely chopped mushroom stems, onion, and garlic. Cook until softened, about 5 minutes. Add the cooked ground chicken or pork, bell pepper, water chestnuts, soy sauce, hoisin sauce, grated ginger, and crushed red pepper flakes (if using). Cook for an additional 5 minutes, stirring frequently. Stir in the chopped green onions. 🧅🧄🍗🌶️🥒🌿

3. Stuff Mushrooms: Place the mushroom caps on a baking sheet. Spoon the filling mixture into each mushroom cap, pressing down slightly to pack the filling. 🥄🍄

4. Bake: Bake in the preheated oven for 15-20 minutes, until the mushrooms are tender and the filling is heated through. If using, sprinkle the shredded mozzarella cheese on top of the mushrooms during the last 5 minutes of baking. 🧀🔥

5. Serve: Remove from the oven and let cool slightly before serving. Enjoy these Asian-Style Stuffed Mushrooms warm as an appetizer or side dish. 😋🍽️