Cut the beans into half or 3 inches.
Place cajun seasoning mix in a plate and add a bit of water. Toss the beans and coat it with the seasoning mix.
Put breadcrumbs in a separate bowl and coat the beans.
Preheat air fryer for 3 minutes. Put the beans in the air fryer and cook for 5-7 minutes in 392F or 200C. Shake the the air fryer basket while cooking. Transfer to a serving plate and enjoy.