Air Fryer Portobello Mushroom Burgers
These Air Fryer Portobello Mushroom Burgers are a flavorful vegetarian meal made with large portobello mushrooms marinated in olive oil, balsamic vinegar, garlic, soy sauce, and herbs. Air-fried until tender and browned, the mushrooms are served on toasted burger buns with lettuce, tomato, red onion, and your favorite toppings. This easy meatless recipe is perfect for a quick lunch or weeknight dinner.
Ingredients
- 4 large portobello mushroom caps stems removed
- 2 tablespoons olive oil
- 1 tablespoon balsamic vinegar
- 1 tablespoon soy sauce
- 2 cloves garlic minced
- 1 teaspoon dried oregano or Italian seasoning
- ¼ teaspoon salt or to taste
- ¼ teaspoon black pepper
- 4 burger buns
- 4 lettuce leaves
- 1 medium tomato sliced
- ¼ medium red onion thinly sliced
- 4 slices cheese optional
- 4 tablespoons burger sauce optional, to taste
Instructions
- Prepare the mushrooms: Gently wipe the portobello mushrooms clean with a damp paper towel. Remove the stems and pat the caps dry. Scrape out the dark gills with a spoon if desired, then set the mushrooms aside.
- Make the marinade: In a small bowl, whisk together the olive oil, balsamic vinegar, soy sauce, minced garlic, dried oregano, salt, and black pepper until combined.
- Marinate the mushrooms: Place the mushrooms in a shallow dish and brush the marinade over both sides. Let them marinate for 15 minutes, turning once so they absorb the flavor evenly.
- Air fry the mushrooms: Preheat the air fryer to 375°F (190°C), if required by your model. Arrange the mushrooms in a single layer and cook for approximately 8–10 minutes, checking for tenderness and turning halfway through if needed. Larger caps may need a little extra time.
- Assemble and serve: Toast the burger buns if desired. Add lettuce to each bottom bun, followed by a cooked portobello mushroom, tomato, red onion, cheese, and your preferred sauce. Add the top bun and serve warm.
Notes
- Choose large, firm portobello mushroom caps that are similar in size for even cooking.
- Pat the mushrooms dry before marinating to encourage better browning.
- Marinate for at least 15 minutes for more flavor; you can marinate longer in the refrigerator.
- Arrange the mushrooms in a single layer in the air fryer basket. Cook in batches if necessary.
- Cooking time depends on mushroom thickness and your air fryer model. Cook until tender but still sturdy enough to hold on a bun.
- Use gluten-free soy sauce and gluten-free buns if needed.
- Store cooked mushrooms separately from buns and fresh toppings in an airtight container in the refrigerator for 3–4 days.
- Reheat mushrooms in the air fryer at 350°F (175°C) for 3–5 minutes, or until warmed through.
- Freezing is possible for up to 2 months for best quality, although the mushrooms may become softer after thawing.
Nutrition Facts
- Calories: 350 kcal
- Total Fat: 15 g
- Saturated Fat: 4 g
- Cholesterol: 15 mg
- Sodium: 700 mg
- Total Carbohydrates: 43 g
- Dietary Fiber: 4 g
- Total Sugars: 8 g
- Protein: 12 g
Note: These values are estimates and may vary depending on the burger buns, cheese, sauce, and ingredient brands used. Omitting cheese or sauce may reduce the calories and fat.