Prepare the mushrooms: Clean and slice the mushrooms into even pieces.
Make the peanut sauce: In a small bowl, whisk together peanut butter, soy sauce, rice vinegar, honey, chili paste, garlic, and ginger until smooth.
Cook the mushrooms: Heat sesame oil in a large skillet over medium heat. Add the sliced mushrooms and cook, stirring occasionally, for about 5-7 minutes, or until they are tender and golden brown.
Combine with sauce: Once the mushrooms are cooked, pour the peanut sauce over them and stir well to coat. Let it cook for an additional 2-3 minutes, allowing the flavors to meld.
Serve: Transfer the mushrooms to a plate and garnish with chopped peanuts and fresh cilantro. Serve immediately with steamed rice, noodles, or as a stand-alone dish.