A simple, flavorful side dish made with tender mushrooms and sweet caramelized onions. Perfect alongside grilled meats, burgers, steaks, or as a topping for sandwiches and salads.
Preparation Time
- Prep Time: 10 minutes
- Cook Time: 12–15 minutes
- Total Time: 25 minutes
Servings
4 servings
Ingredients
- 16 oz (450g) mushrooms, sliced
- 1 large onion, sliced into thin strips
- 2 tablespoons olive oil
- 1 teaspoon garlic powder
- 1 teaspoon Italian seasoning
- ½ teaspoon paprika
- ½ teaspoon salt
- ¼ teaspoon black pepper
- 1 tablespoon fresh parsley, chopped (optional)
- 1 teaspoon balsamic vinegar (optional)
Instructions
Step 1: Prepare the Vegetables
- Clean the mushrooms with a damp paper towel and slice them evenly.
- Peel and thinly slice the onion.
- Place both in a large mixing bowl.
Step 2: Season
- Drizzle olive oil over the mushrooms and onions.
- Add garlic powder, Italian seasoning, paprika, salt, and black pepper.
- Toss well until everything is evenly coated.
Step 3: Air Fry
- Preheat the air fryer to 380°F (193°C) for 3 minutes.
- Place the seasoned mushrooms and onions in the air fryer basket in an even layer.
- Cook for 12–15 minutes, shaking the basket every 4–5 minutes.
- Cook until the onions are lightly caramelized and the mushrooms are tender and golden.
Step 4: Finish and Serve
- Transfer to a serving dish.
- Drizzle with balsamic vinegar if desired.
- Garnish with fresh parsley before serving.
Tips for Success
- Avoid overcrowding the basket for the best browning.
- Slice mushrooms and onions evenly for consistent cooking.
- For extra flavor, add a sprinkle of grated Parmesan during the last 2 minutes of cooking.
- Use baby bella, cremini, or white button mushrooms.
Variations
Garlic Butter Version
Replace olive oil with melted butter and add 2 minced garlic cloves.
Spicy Version
Add ¼ teaspoon red pepper flakes or cayenne pepper.
Herb Lovers
Mix in fresh thyme or rosemary before serving.
Storage
Refrigerator
Store leftovers in an airtight container for up to 4 days.
Reheating
Air fry at 350°F (175°C) for 3–4 minutes until warmed through.
Nutrition Information (Per Serving)
- Calories: 95
- Protein: 3g
- Carbohydrates: 8g
- Fiber: 2g
- Fat: 6g
- Saturated Fat: 1g
- Sodium: 310mg
FAQs
Can I use frozen mushrooms?
Fresh mushrooms are recommended, but frozen mushrooms can be used. Thaw and drain well before cooking.
Why are my mushrooms watery?
Mushrooms naturally release moisture. Avoid overcrowding the basket and cook at a higher temperature for better browning.
Can I make this ahead of time?
Yes. Prepare and season the vegetables up to 24 hours ahead, then cook when ready.
What can I serve with Air Fryer Mushrooms & Onions?
They pair wonderfully with steak, chicken, burgers, omelets, rice bowls, pasta dishes, or as a pizza topping.
Notes
- Mushrooms shrink significantly during cooking, so start with a generous amount.
- A splash of soy sauce or Worcestershire sauce can add extra depth of flavor.
- This recipe is naturally gluten-free, low-carb, and vegetarian.