- Heat oil and butter in a non-stick wok, add garlic and sauté till light golden brown. Add Shimeji mushrooms, button mushrooms, shiitake mushrooms and sauté on high heat till mushrooms turn golden brown. Reduce the heat to low, add salt, dried red chilli flakes, crushed black peppercorns and parsley leaves and toss. Take the wok off the heat. Transfer butter garlic mushrooms into a serving bowl, garnish with parsley sprig and serve hot.