Preheat the Air Fryer: Start by preheating your air fryer to 400°F (200°C). This usually takes about 3-5 minutes, depending on your air fryer model. Preheating ensures that the vegetables will start cooking at the right temperature for optimal crispiness.

Season the Vegetable Hash: While the air fryer is preheating, transfer the vegetable hash to a mixing bowl. If you're using olive oil, drizzle it over the vegetables now. Add salt and pepper to taste. Toss everything together until the vegetables are evenly coated with the oil and seasoning. This step not only adds flavor but also helps to achieve that golden, crispy exterior.

Arrange in the Air Fryer: Once the air fryer is preheated, carefully arrange the seasoned vegetable hash in the air fryer basket. Spread the vegetables out into a single layer as much as possible. This ensures each piece cooks evenly and becomes nicely crisped.

Cooking Time: Cook the vegetable hash for about 15-20 minutes. It's a good practice to shake the basket or use a spatula to stir the vegetables halfway through the cooking time. This promotes even cooking and helps all the pieces get a nice, even crisp.

Check for Doneness: The hash is done when the vegetables are tender on the inside and crispy on the outside, with a beautiful golden-brown color. Cooking times may vary slightly based on your air fryer model and how crispy you like your vegetables.

Serve Immediately: Once cooked to your liking, carefully remove the holiday vegetable hash from the air fryer and serve it immediately. This dish is best enjoyed hot, offering a crispy, flavorful complement to your holiday meals.