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5 from 6 votes

Garlic Butter Roasted Mushrooms

These Garlic Butter Roasted Mushrooms are the perfect side dish to serve with grilled meat! Flavoured with real butter, fresh garlic & thyme!
Course Appetizer, Side Dish
Cuisine American, Steakhouse
Keyword Garlic Butter Roasted Mushrooms
Prep Time 10 minutes
Cook Time 25 minutes
Total Time 35 minutes
Servings 2 servings
Calories 215kcal
Author Chrissie (thebusybaker.ca)


  • 1 tablespoon olive oil
  • 2 tablespoons unsalted butter or vegan butter
  • 4 cloves garlic minced
  • 2 sprigs of fresh thyme, leaves only plus more for garnish, if desired
  • 20 jumbo white mushrooms cut in half
  • sea salt and black pepper


  • Preheat your oven to 375 degrees Fahrenheit.
  • Heat a large cast-iron skillet over medium-high heat and add the olive oil.
  • Add the butter and let it melt.
  • Add the garlic and thyme leaves and cook just until fragrant.
  • Add the mushrooms and salt and pepper, and toss well to coat the mushrooms in the garlic butter mixture.
  • Place the skillet in the oven and roast for about 25-30 minutes until the mushrooms have browned. Toss once in the middle of roasting, if necessary.


For best results, serve immediately. 


Serving: 1serving | Calories: 215kcal | Carbohydrates: 9g | Protein: 7g | Fat: 19g | Saturated Fat: 8g | Cholesterol: 30mg | Sodium: 13mg | Potassium: 660mg | Fiber: 2g | Sugar: 4g | Vitamin A: 350IU | Vitamin C: 6mg | Calcium: 17mg | Iron: 1mg