Garlic Butter Shiitake Mushrooms Recipe

This flavorful shiitake mushrooms recipe is super easy to make! Just chop, season, pop in your oven, stir once or twice while baking, and enjoy!

recipe of oven baked shiitake mushrooms with garlic and butter seasoning
Shiitakes have a rich, meaty texture and are packed full of flavor and nutrients!

We grow a ton of shiitake mushrooms so are always experimenting with ways to use them.

This is one of our favorite side dishes made with shiitakes – it’s super simple to make and bakes almost hands-off while you work on the rest of dinner.

I like to pair it with my Garlic Parmesan Roasted Kohlrabi recipe since they both use the same oven temperature, and I often have a big harvest of kohlrabi to use at the same time I have an excess of shiitakes!

a basket of freshly collected shiitake mushrooms
These mushrooms came straight from our cultivated shiitake logs at our creek & are ready to be turned into dinner!

Garlic Butter Shiitake Mushrooms

Ingredients you’ll need:

  • 3 cups (abt 8 oz, with stems removed) chopped shiitake mushrooms
  • 1 tbsp salted butter
  • 1/2 tbsp olive oil
  • 1 minced clove garlic
  • 1/4 tsp pepper
  • 1/4 tsp salt

Instructions to make:

Preheat oven to 400 F.

Prepare your mushrooms. To do this, begin by removing the stems from your shiitakes. (Save those stems and use them to make simmered broths and soups!)

About 8 ounces of shiitakes with the stems removed, should chop up to around 3 cups of mushroom pieces.

cleaned shiitake mushroom caps
Freshly cleaned shiitakes, ready to be chopped and roasted in the oven!

Wipe the mushroom caps off with a damp cloth (preferred method) or very quickly rinse under water and pat dry.

Dice the mushrooms into roughly 1″ pieces. Precision isn’t important here, just make sure they’re all more or less around the same size.

While you’ve got the knife out for chopping, take your clove of garlic and mince it.

garlic butter seasoning for mushrooms
Easy and simple ingredients – butter, olive oil, garlic, salt, and pepper.

In a separate, small bowl, melt 1 tablespoon of salted butter. To this butter, add the olive oil, pepper, and salt. Then add in the minced garlic clove, and give it all a good stir to combine everything together.

season the mushrooms before baking
Giving everything a quick stir.

Next, add the chopped shiitakes to the butter/garlic/spice mixture and toss everything together, aiming to coat the mushroom pieces thoroughly.

Once thoroughly coated, transfer mushrooms to a lightly sprayed 8 x 8 glass pan.

Bake the mushrooms for 22-24 minutes, or until tender.

Stir at least once or twice while baking, otherwise this recipe is hands-off!

Serve immediately, while still hot.

Leftovers can be refrigerated. I actually love the taste of them cold from the fridge, but the rest of my family thinks I’m weird. You may wish to gently reheat your leftovers with brief bursts of a microwave, like they do!

Easy oven baked shiitake mushrooms seasoned with garlic and butter
Fresh shiitake mushrooms – oven baked for an easy peasy side dish.
bowl of oven roasted shiitake mushrooms with garlic and butter flavor

Garlic Butter Shiitake Mushrooms Recipe

This flavorful shiitake mushrooms recipe is super easy to make! Just chop, season, pop in your oven, stir a few times while baking, and enjoy!
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Course: Side Dish
Keyword: gluten free, oven baked, quick and easy, shiitake mushrooms
Prep Time: 10 minutes
Cook Time: 24 minutes
Total Time: 34 minutes
Servings: 2


  • 8 oz shiitake mushrooms with stems removed (abt 3 cups when chopped)
  • 1 tbsp salted butter
  • 1/2 tbsp olive oil
  • 1 clove garlic, minced
  • 1/4 tsp pepper
  • 1/4 tsp salt


  • Preheat oven to 400 degrees F.
  • Wash mushrooms, remove stems, and cut into small pieces (about 1").
  • Melt the butter, then add the olive oil, minced garlic, salt, and pepper. Stir until combined.
  • Next, add the chopped shiitake mushrooms to the garlic butter mixture.
  • Mix well and dump into a lightly sprayed 8×8 inch baking pan.
  • Stir once or twice while baking.
  • Roast the mushrooms for 22 to 24 minutes, or until tender.
  • Remove from oven and serve hot.
  • Leftovers can be stored in your fridge for a couple of days.

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