Preheat your air fryer to 400 degrees F.

While it preheats, cut the chicken breasts into 1-inch thick pieces and place the bite-sized pieces in a large bowl.

Drizzle the olive oil over the chicken chunks and then toss them so the oil coats the chicken evenly.

Sprinkle the Cajun seasoning (start with 1 to 3 teaspoons, and adjust to your taste preference), Italian seasoning, garlic powder, and onion powder over the chicken.

Toss again so that the chicken pieces are evenly coated with the seasonings.

Place the chicken cubes in a single layer in your preheated air fryer basket.

Cook the chicken bites for 8-10 minutes or until the internal temperature of the chicken reaches 165°F (74°C) and the pieces are golden brown and crispy.

After the chicken bites are cooked through and crispy, take them out of the air fryer and let them cool for a minute or two before serving.