Prep the mushrooms: Gently wipe mushrooms with a damp cloth and trim stems. Pat dry to avoid sogginess.
Heat the pan: In a large skillet, melt butter with olive oil over medium-high heat.
Sauté garlic: Add minced garlic and cook 30 seconds until fragrant — do not let it brown.
Cook mushrooms: Add mushrooms in a single layer. Let cook undisturbed for 2–3 minutes, then stir occasionally until they develop a nice sear.
Add sauces: Stir in Worcestershire sauce, soy sauce, salt, pepper, and thyme. Cook 3–4 more minutes until mushrooms are tender and sauce slightly thickens.
Garnish & serve: Remove from heat, sprinkle with parsley, and serve immediately.