Preparation: The whole cooking process is pretty straightforward. If you are using whole butternut squash, peel and cube it into 1-inch cubes. If using pre-cut frozen butternut squash, you can skip this step.
Coat with oil: In a large bowl, toss the pre-cut butternut squash cubes with olive oil until evenly coated. This will help them crisp up nicely in the air fryer.
Seasoning: Sprinkle the squash cubes with garlic powder, salt, and black pepper.
Arranging in the air fryer: Place the seasoned squash cubes in a single layer in the air fryer basket. Make sure they are not overcrowded to ensure even cooking. Depending on the size of your air fryer, you may need to cook in batches.
Air-frying: Set the air fryer to 400 degrees F and cook the butternut squash for 15 minutes, shaking the basket to ensure even cooking. Then, cook for an additional 5 minutes until the squash is golden brown and fork tender. Cooking time may vary depending on the size of your squash cubes and the power of your air fryer.
Serve and enjoy!