Oven Roasted Oyster Mushrooms are made just with 5 simple ingredients: Oyster mushrooms, salt, pepper, rosemary and olive oil. The most amazing flavor combination! You end up with the tastiest vegan snack ever! What’s more, they make a great touch on soups or in salads.
Oyster mushrooms are our favorite type of mushrooms. They have an outstanding meaty flavor and we love creating recipes with them. Our top favorite is fried breaded oyster mushrooms.
If you love them too, you should see our pan fried oyster mushrooms, oyster mushroom noodle soup and grilled oyster mushroom kebabs.
These oyster mushroom chips are one of the best vegetable snacks ever! Turning a vegetable into a chips is like a magic in the kitchen. A perfect way to include vegetables in your diet. Some other veggie snacks we love are okra chips, zucchini chips and fried green beans.
Ingredients
It is an easy recipe with 5 ingredients:
- Pearl oyster mushrooms or sliced king oyster mushrooms
- Salt
- Pepper
- Fresh rosemary
- Olive oil
As you see, it is almost a single ingredient recipe because it calls for oyster mushrooms and seasoning. Salt, pepper and oil are staples of almost any dish and we always have these in our pantry. Fresh rosemary is optional, but its flavor combines very well with the flavor of mushroom. So it is highly recommended.
How To Make
I can’t think of an oyster mushroom recipe easier than this. The method is quite straightforward: Combine everything in a baking sheet and bake. It is that simple! Let me explain it in two stages:
Prepare The Mushrooms
Separating oyster mushrooms into pieces 
Cutting the rubbery stems of oyster mushrooms
Cleaning oyster mushrooms with paper towel 
Oyster mushrooms with rosemary leaves on a baking sheet
Separate individual mushrooms from the main stem using your hand, like tearing them off the stem. You can use a knife too but I find the tearing method easier. Cut off the tough rubbery ends on the stems. Clean each mushroom with a damp kitchen towel or paper towel.
Roast The Mushrooms
Hands brushing oyster mushrooms with olive oil in a baking sheet 
Oyster mushrooms with salt, pepper, rosemary and olive oil in a baking sheet
- First, preheat the oven to 430F/220C.
- Second, place the cleaned mushrooms on a parchment paper lined baking sheet.
- Third, brush each of them with olive oil. Sprinkle salt, pepper and fresh rosemary leaves over them. Bake for 25 minutes or until brown and crispy. The baking duration might be different depending on the size of your mushrooms and your oven. So keep an eye on them and check after 10 minutes.
Pro Tip: The smaller the mushrooms are the crispier they get. So if you want something like really crispy mushroom chips, tear or cut the large mushrooms into small pieces. And roast them for 10-12 minutes.
Note About Oven Roasting: I tried both turning the mushrooms over after about 20 minutes and not touching them until the end of the baking duration. The result is pretty similar, so there is really no need to remove the mushrooms from oven and turn them over.
How To Make These In Air Fryer
- First, preheat air fryer to 360F/180C for about
- Second, prepare the mushrooms as described above.
- Third, spritz the fryer basket with oil or cooking spray. Place oyster mushrooms into the basket in a single layer.
- Fourth, spritz the mushrooms with oil. Sprinkle salt, pepper and rosemary leaves.
- Finally, cook for 5 minutes, flip them over and cook for another 5 minutes or until crispy and golden brown.
Using Suggestions
We love to snack on these oyster mushroom chips and we mostly enjoy them as they are pairing with cold beer. Believe it or not, these two make a wonderful match.
However, the usage of roasted mushrooms is not limited to this. Some suggestions are as follows:
- Use them to top your cream of mushroom soup or any other creamy soups.
- Use them in a keto salad recipe or you can make a vegetarian version of any chicken salad recipe using roasted oyster mushrooms.
- Use them in sandwiches like avocado turkey sandwich for an extra rich flavor.
FAQs
If the mushroom is firm and dry, it is fresh and good. If it is slimy and too soft, it is bad.
It is definitely safe to eat them. However, you might have stomach problems if you eat too many of them, especially if you have a fragile metabolism.
Yes, keep them in the refrigerator if you are not planning to use them immediately. Put them in a paper bag or wrap them with paper towel and then put in the refrigerator. They keep well for about a week this way.
More Mushroom Recipes
- Vegetable Kabobs In Oven (with mushrooms)
- Mushroom Pasta Creamy
- King Oyster Mushroom Recipe
- Mushroom Masala from Whisk Affair
- Portobello Mushroom Burgers from Don’t Go Bacon My Heart
More Appetizers
As always: If you make this recipe, let us know what you think by rating it and leaving a comment below. And post a pic on Instagram too—tag @give_recipe so we can see!
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📖 Recipe
Roasted Oyster Mushrooms
Oyster mushroom seasoned and baked in oven. Crispy edges and meaty center make these the best vegan snack ever!
- Prep Time: 15 minutes
- Cook Time: 25 minutes
- Total Time: 40 minutes
- Yield: 6 1x
- Category: Appetizer
- Method: Baking
- Cuisine: American
Ingredients
- 1 pound (450g) oyster mushrooms
- 1 tablespoon olive oil
- 1 teaspoon salt
- ½ teaspoon black pepper
- 1 tablespoon rosemary leaves
Instructions
In the oven:
- Preheat the oven to 430F/220C. Line two baking sheets with parchment paper.
- Place the cleaned mushrooms on baking sheets.
- Brush each of them with olive oil. Sprinkle salt, pepper and fresh rosemary leaves over them. Bake for 25 minutes or until brown and crispy. The baking duration might be different depending on the size of your mushrooms and your oven. So keep an eye on them and check after 10 minutes.
- Serve immediately.
In the air fryer:
- Preheat air fryer to 360F/180C for about
- Prepare the mushrooms as described above.
- Spritz the fryer basket with oil or cooking spray. Place oyster mushrooms into the basket in a single layer.
- Spritz the mushrooms with oil. Sprinkle salt, pepper and rosemary leaves.
- Cook for 5 minutes, flip them over and cook for another 5 minutes or until crispy and golden brown.
Notes
The mushrooms shouldn’t overlap when you place them on the baking sheet to roast them in oven, so I used two baking sheets.
Nutrition
- Serving Size:
- Calories: 46
- Sugar: 0.8 g
- Sodium: 401.2 mg
- Fat: 2.7 g
- Carbohydrates: 4.7 g
- Protein: 2.5 g
- Cholesterol: 0 mg
Keywords: roasted oyster mushrooms, roasted crispy oyster mushrooms, oven roasted oyster mushroom recipe
Wendy S says
So incredibly delicious! Thank you for the easy recipe!
★★★★★
Zerrin & Yusuf says
Hi Wendy,
Sooo happy to hear this. Thank you for taking time to come back and share how you feel about the recipe.
Cheers!
El Kay says
I grew my own oyster mushrooms and was so excited to try them. I roasted in the oven for only 15 minutes according to this recipe and they were burned to a crisp, completely inedible. Might recommend a much shorter cooking time to prevent them from burning.
Zerrin & Yusuf says
Hi El,
We are sorry to hear that it didn't work for you. The duration for baking might change depending on the size of oyster mushroom pieces and on the type of ovens. So it might be better to keep an eye on them when they are in the oven and remove when they are brown enough.
Thank you for this feedback, we will write it as a note on the recipe.
Twinkle says
Hi! It looks healthy and crispy. Im just wondering if that recipe works if Im planning to store it in paper-bag resealable pouches and sell it online or in grocery store. Would it last long? The crispiness and its quality?
Pls let me know. Thank you!
Yusuf says
Hi there,
We wouldn't recommend storing it long. They are the best when served immediately. They will lose their crispiness as they wait.
melanie says
I worked in a 4 star restaurant for awhile, and they frequently had these delicious oyster mushrooms. We roasted them in prep, and they were used for multiple different dishes we served. I LOVED snacking on them. I saw that you could order inexpensive grow kits for them on Amazon, so I grew my own due to the fact they are not readily available in stores in small-town Kentucky, lol. I just picked my first harvest, and used this recipe. The only thing I changed was instead of using s&p, I used a spice mix that contains s,p, & garlic. They only needed to roast about 12 minutes, but they were PERFECT. They never even made it to dinner, lol. I couldn't resist and snacked on them until they were gone. Superb.
★★★★★
Tim says
Nice recipe! When I lived in Central Asia there was a kind of appetizer from the Uyghur culture using oyster mushrooms pulled into thin strips, dredged in a mix of starch, chili powder, cumin, and salt, deep-fried until crispy and golden. It was amazingly delicious but not the healthiest way of cooking. I wonder if I could make a skinnier version by following your method but substituting the rosemary for chili and cumin.
★★★★★
Yusuf says
Hi Tim,
That oyster mushroom strips sound amazing! I'm sure they come out really amazing. Have to give it a try! Thanks for sharing this here! We are always into new recipes with oyster mushrooms:)
As for the healthier version, I think roasting is a good alternative to frying. I guess they get even crispier if roasted in strips.
Let us know how it turns out!
Lithenna says
Oh, I love oyster mushrooms as well! I'm glad to discover a new way to cook them! Thank you!
★★★★★
Yusuf says
Hi Lithenna! The flavor of oyster mushrooms is at its best when roasted. Hope you have chance to try these soon.