Start off the recipe by preheating the air fryer for 3 to 5 minutes at 375 degrees Fahrenheit.
In the meantime, take a large bowl and add capsicum, mushroom, onion, zucchini, broccoli, cauliflower, and carrot to it. Season the vegetables with olive oil, garlic powder, salt, Italian seasoning, and pepper, and make sure every vegetable is coated with the seasoning.
Once the air fryer is preheated, add some vegetables to the air fryer basket in such a way that everything fits in a single layer and has a gap for the air to circulate. Cook them for 10 to 15 minutes and shake the air fryer basket halfway through this time. You will stop once the vegetables are tender and brown.
Repeat the same step with the remaining vegetables. Always cook them for 1 to 15 minutes, depending on the temperature of your air fryer.
Finally, the roasted vegetables are ready. Transfer them to the serving dish and garnish them with grated Parmesan cheese and fresh parsley. Squeeze lemon wedges, and enjoy them on their own or with a meal.
Notes
The first thing worth noting is the size of the vegetables, and it is important to get them all uniform to guarantee even cooking. I usually prefer cutting vegetables into small pieces, so they are cooked at the same time in the air fryer. If the size is bigger (especially for broccoli and carrots), they won’t cook within the estimated time.
Do not overcrowd your air fryer basket, or you will be compromising on the texture and crispiness of the vegetables. The air in the basket should be hot enough and come in contact with all the vegetable pieces, so you get the perfect caramelized and crisp texture.
Always preheat the air fryer for 3 to 5 minutes. It works wonders in getting the perfect crispy texture, which is otherwise not apparent with air frying.
Do not underestimate oil; it is important to get the inner tender and outside crispy. But do not go overboard, just lightly coat the vegetables with 2 to 3 tbsp olive oil or even a little.