Preheat your air fryer to around 375°F (190°C) for a few minutes. This will ensure that the peppers and onions cook evenly and quickly.

Place the frozen peppers and onions in a single layer in the air fryer basket. Avoid overcrowding the basket to ensure that the vegetables cook evenly.

Cook the frozen peppers and onions in the air fryer for about 10-15 minutes, shaking the basket halfway through the cooking time to ensure even cooking. The exact cooking time may vary depending on the size of your air fryer and the desired level of doneness.

After the initial cooking time, check the peppers and onions for doneness. They should be tender and slightly caramelized around the edges.

Once cooked, season the peppers and onions with salt, pepper, and any other desired seasonings or herbs to taste. Toss them gently to evenly distribute the seasonings.

Serve the air-fried peppers and onions as a side dish, or use them as a topping for tacos, salads, sandwiches, or pasta dishes. Enjoy their delicious flavor and crisp texture!