Crispy Portobello Mushroom Fries Recipe

Perfectly crunchy on the outside, tender on the inside, and full of flavor, these crispy Portobello Mushroom Fries are just what you need! Whether you’re looking for a tasty party appetizer or a fun twist on your veggie intake, these fries are healthier than traditional fries, and so delicious.

A bowl of delicious portobello mushroom fries with a dipping sauce.

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I’ve been whipping up these portobello mushroom fries for a while now, and trust me, they’re a game-changer. Easy to make and packed with flavor, they’re perfect for anyone looking to try something new in the kitchen. This recipe is a favorite on my blog for its simplicity and deliciousness. If you’re after a tasty, veggie-friendly snack that’s sure to impress, you’re in the right place. Let’s get these fries cooking!

Why You Will Love Making Portobello Mushroom Fries

If you’re on the hunt for a snack that’s as nutritious as it is delicious, look no further than portobello mushroom fries. Here’s why they’re about to become your new favorite treat:

  • Healthier Alternative: Swapping traditional potato fries for portobello mushroom fries is a great way to enjoy a crispy, savory snack with fewer carbs and more nutrients.
  • Easy to Make: With just a few simple ingredients and steps, you can whip up a batch of these fries in no time, making them perfect for quick snacks or unexpected guests.
  • Versatile: These fries are incredibly adaptable. Serve them with a variety of dipping sauces, from classic ketchup to gourmet aioli, to satisfy all taste preferences. They’re great for a side dish or a snack.
  • Crowd-Pleaser: Whether you’re catering to vegans, vegetarians, or meat-eaters, everyone will love the crunchy exterior and tender interior of these fries.
  • Fun Cooking Experience: Making portobello mushroom fries is a delightful way to get creative in the kitchen and try something new.

Ingredients You’ll Need

You’ll need all the ingredients in the photograph below.

A list of ingredients for a mushroom portobello fries.

How to Make Portobello Mushroom Fries with Step-By-Step Instructions

A complete printable recipe and the measurements in both US customary and metric are available in the recipe card below.

Creating portobello mushroom fries is easier than you might think, and I’m here to guide you through each step of the process. Let’s get started on making this tasty snack that’s sure to become a staple in your kitchen.

Preparing Your Ingredients

First things first, preheat your oven to 355°F (180ºC) so it’s ready to go. Then, take your portobello mushrooms and slice them into 2-inch long sticks. This size is perfect for getting that ideal ratio of crispy coating to juicy mushroom.

Sliced portobello mushrooms and other ingredients on a cutting board.
Slice the portobello mushrooms into 2-inch long sticks.

Creating the Egg Wash

Crack an egg into a bowl and give it a quick whisk. This egg wash will act as the glue that helps the dry ingredients stick to the mushrooms, ensuring a perfectly coated fry every time.

Mixing the Dry Ingredients

In another bowl, mix together the flour, panko breadcrumbs, finely shredded Parmesan cheese, garlic powder, onion powder, and a generous pinch of salt and black pepper. This mixture will give your fries that irresistible crunch and flavor.

A bowl of ingredient mixture for a portobello mushrooms.
Crack an egg in a bowl and give a quick whisk.
A bowl of flour mixture for a Portobello Mushroom Fries.
Mix the flour, breadcrumbs, Parmesan cheese, garlic powder, onion powder, salt, and black pepper in another bowl.

Coating the Mushrooms

Dredge each mushroom stick first into the egg wash, ensuring it’s fully coated, and then roll it in the dry mixture. Make sure each piece is well-covered for that perfect crispy finish.

A slice of Portobello Mushroom dipped in beaten egg.
First, dip each mushroom in the egg wash until it’s fully coated.
Two bowls filled with flour and a spoon, perfect for making portobello mushroom fries.
Next, roll it in the dry mixture.
A wooden cutting board with breaded portobello mushroom fries.
Ensure all pieces are thoroughly coated.

Baking Time

Spray your baking tray with non-stick cooking oil spray and arrange the coated mushrooms on the tray. Pop them into the oven and bake for 15 minutes. They should come out golden and crispy.

A baking sheet with a tray of breaded portobello mushroom fries.
Grease a baking tray and add coated mushrooms.
A baking sheet with a tray of breaded portobello mushroom fries.
Bake mushrooms for 15 minutes.

Serving

Once baked, serve your portobello mushroom fries hot, sprinkled with some fresh parsley for an added touch of flavor. Don’t forget to choose your favorite dipping sauce to accompany these delicious fries.

A bowl of portobello mushroom fries with dipping sauce.
Top with fresh parsley and serve hot.

Recipe Notes and Expert Tips

To make sure your portobello mushroom fries turn out perfectly every time, here are some expert tips and important notes to keep in mind:

  • Dry the Mushrooms Well: Before slicing, make sure to pat the mushrooms dry. Removing excess moisture helps the coating stick better and results in a crispier fry.
  • Season to Taste: Don’t be afraid to adjust the seasoning in the breadcrumb mixture according to your preferences. Love garlic? Add a bit more garlic powder. Feeling spicy? A dash of chili flakes can add some heat.
  • Don’t Overcrowd the Baking Tray: Make sure the breaded mushroom slices aren’t touching each other on the baking sheet. This ensures even cooking and optimal crispiness. Cook them in batches or on multiple baking trays if needed.
  • Flip Halfway Through: For an even golden-brown color and extra crispiness, flip the fries halfway through the baking time.
  • Customize Your Coating: Feel free to add other ingredients to your breadcrumb mixture, like nutritional yeast for a cheesy flavor without the dairy. Some other great additions include smoked paprika for a smoky flavor, your favorite dried herbs or Italian seasoning for an herby touch, or even a sprinkle of cayenne pepper for a spicy kick. A little lemon zest in the egg mixture or a squeeze of lemon juice at the end really elevates the flavor.
  • Other types of Mushrooms: While portobello mushrooms are recommended for their size and texture, you can also use other large mushrooms like shiitake or oyster mushrooms. Just adjust the cooking time accordingly.
  • Gluten-free Options: To make this recipe gluten-free, simply use gluten-free panko bread crumbs and ensure your flour blend is gluten-free as well.
  • Make Ahead: You can prepare the coated mushroom strips ahead of time and store them in the refrigerator for a few hours before baking. This can help save time if you’re planning to serve them for a party or gathering.
  • Extra crispy: For extra crispiness, make sure the mushroom slices are completely dry before coating, and try flipping them halfway through baking. Using an air fryer can also result in a crispier texture.
A white bowl filled with dipping sauce and portobello mushroom fries.

How to Store Leftover Portobello Mushroom Fries

Got leftovers? No problem! Here’s how to keep your portobello mushroom fries tasting great for tomorrow:

  • Cool Completely: Before storing any leftovers, allow your mushroom fries to cool completely to room temperature. 
  • Refrigeration: Transfer the cooled fries to an airtight container and store them in the refrigerator. They’ll stay fresh for up to 3 days.
  • Reheating: To bring back the crispiness, reheat the fries in the oven or air fryer at 350°F (175°C) for a few minutes until they’re heated through and crispy again. Avoid the microwave, as it tends to make them soft and chewy.
  • Don’t Freeze: Freezing is not recommended for portobello mushroom fries. The texture can become mushy once thawed and reheated.

What to Serve with Portobello Mushroom Fries

Deciding what to pair with your portobello mushroom fries can turn them from a delightful snack into a complete meal. Here are some tasty suggestions:

Pair with Dipping Sauces

The right sauce can transform your mushroom fries into an irresistible treat. Classic options like ketchup, BBQ sauce, and ranch dressing are always a hit, but why not elevate the experience with something like lemon aioli, basil aioli, Thai Sweet Chili Sauce, or a homemade marinara sauce? The creamy or tangy flavors complement the crispy, savory taste of the fries perfectly.

Create a Gourmet Burger Experience

If you’re in the mood for a more filling meal, pair the portobello mushroom fries with a veggie burger or black bean burger. The combination of a hearty burger with the crispy fries creates a satisfying, gourmet meal that’s sure to please any crowd. Add some melted cheese, lettuce, tomato, and your favorite burger sauce to complete the dish.

Serve With a Protein

Serving the fries with a protein like grilled tofu or Vegan Ham can make an amazing well-rounded meal. The meaty texture of the portobello fries complements the protein, while the different flavors and textures make each bite interesting and enjoyable.

A bowl of portobello mushroom fries.

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Crispy Portobello Mushroom Fries Recipe

Perfectly crunchy on the outside, tender on the inside, and full of flavor, these crispy Portobello Mushroom Fries are just what you need! Whether you're looking for a tasty party appetizer or a fun twist on your veggie intake, these fries are healthier than traditional fries, and so delicious.
Prep Time20 minutes
Cook Time25 minutes
Total Time45 minutes
Servings2
Calories204
Course: Side Dish
Cuisine: American

Ingredients

  • 3 cups portobello mushrooms sliced in 2-inch long sticks
  • 1 egg
  • ¼ cup flour
  • ¼ cup panko breadcrumbs
  • ¼ cup Parmesan cheese finely shredded
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • Salt and pepper
  • Cooking oil spray
  • Fresh parsley to serve

Instructions

  • Preheat the oven to 355°F/180ºC.
  • Slice the mushrooms into 2-inch long sticks.
    3 cups portobello mushrooms
  • Crack the egg in a bowl.
    1 egg
  • In another bowl, combine flour, breadcrumbs, Parmesan cheese, garlic powder, onion powder, salt and pepper.
    ¼ cup flour, ¼ cup panko breadcrumbs, ¼ cup Parmesan cheese, 1 teaspoon garlic powder, 1 teaspoon onion powder, Salt and pepper
  • Dip each slice in the egg and then in the dry mixture.
  • Spray your baking tray with non-stick cooking oil spray and arrange the mushrooms in the air fryer basket. Bake for 15 minutes at 355°F/180ºC.
    Cooking oil spray
  • Serve with fresh parsley and your favorite sauce.
    Fresh parsley to serve

Notes

  • Dry the Mushrooms Well: Before slicing, make sure to pat the mushrooms dry. Removing excess moisture helps the coating stick better and results in a crispier fry.
  • Season to Taste: Don’t be afraid to adjust the seasoning in the breadcrumb mixture according to your preferences. Love garlic? Add a bit more garlic powder. Feeling spicy? A dash of chili flakes can add some heat.
  • Don’t Overcrowd the Baking Tray: Make sure the breaded mushroom slices aren’t touching each other on the baking sheet. This ensures even cooking and optimal crispiness. Cook them in batches or on multiple baking trays if needed.
  • Flip Halfway Through: For an even golden-brown color and extra crispiness, flip the fries halfway through the baking time.
  • Customize Your Coating: Feel free to add other ingredients to your breadcrumb mixture, like nutritional yeast for a cheesy flavor without the dairy. Some other great additions include smoked paprika for a smoky flavor, Italian seasoning for an herby touch, or even a sprinkle of cayenne pepper for a spicy kick.
  • Other types of Mushrooms: While portobello mushrooms are recommended for their size and texture, you can also use other large mushrooms like shiitake or oyster mushrooms. Just adjust the cooking time accordingly.
  • Gluten-free Options: To make this recipe gluten-free, simply use gluten-free panko bread crumbs and ensure your flour blend is gluten-free as well.
  • Make Ahead: You can prepare the coated mushroom strips ahead of time and store them in the refrigerator for a few hours before baking. This can help save time if you’re planning to serve them for a party or gathering.
  • Extra crispy: For extra crispiness, make sure the mushroom slices are completely dry before coating, and try flipping them halfway through baking. Using an air fryer can also result in a crispier texture.

Storage & Reheating

  • Cool Completely: Before storing any leftovers, allow your mushroom fries to cool completely to room temperature. 
  • Refrigeration: Transfer the cooled fries to an airtight container and store them in the refrigerator. They’ll stay fresh for up to 3 days.
  • Reheating: To bring back the crispiness, reheat the fries in the oven or air fryer at 350°F (175°C) for a few minutes until they’re heated through and crispy again. Avoid the microwave, as it tends to make them soft and chewy.
  • Don’t Freeze: Freezing is not recommended for portobello mushroom fries. The texture can become mushy once thawed and reheated.

Nutrition

Calories: 204kcal | Carbohydrates: 25g | Protein: 13g | Fat: 6g | Saturated Fat: 3g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 2g | Trans Fat: 0.01g | Cholesterol: 90mg | Sodium: 300mg | Potassium: 571mg | Fiber: 3g | Sugar: 4g | Vitamin A: 216IU | Vitamin C: 0.3mg | Calcium: 185mg | Iron: 2mg

Disclaimer

Please note that nutrient values are estimates only. Variations can occur due to product availability and manner of food preparation. Nutrition may vary based on methods of origin, preparation, freshness of ingredients, and other factors.

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