Step 1

Soak potatoes in cool water for 20 minutes.

Step 2

Preheat the air fryer to 320 degrees F (160 degrees C). Drain the potatoes, dry them with a clean towel, and transfer to a large bowl. Drizzle 1 tablespoon olive oil over the potatoes and toss to coat. Add them to the preheated air fryer basket. Set the timer for 18 minutes.

Step 3

Put bell pepper, onion, and jalapeno in the bowl previously used for the potatoes. Sprinkle in 1/2 teaspoon olive oil, taco seasoning, ground cumin, salt, and pepper. Toss to coat.

Step 4

Transfer potatoes from the air fryer to the bowl with the vegetable mixture. Return the empty basket to the air fryer and raise the temperature to 356 degrees F (180 degrees C).

Step 5

Quickly toss the contents of the bowl to mix the potatoes evenly with the vegetables and seasoning. Transfer mixture into the basket. Cook for 6 minutes, shake the basket, and continue cooking until potatoes are browned and crispy, about 5 minutes more. Serve immediately.