Prep the chicken: Preheat your air fryer to 400°F (200°C). In a shallow bowl, add the egg whites, salt, and pepper. Dip each chicken piece in the egg wash, then coat evenly with breadcrumbs. Place the breaded chicken in a single layer in the air fryer basket and cook for 10-12 minutes, flipping halfway through, until golden brown and crispy.
Roast the potatoes: Toss the cubed potatoes with olive oil spray, salt, pepper, and garlic powder. Spread on a baking sheet and roast in a preheated oven at 425°F (220°C) for 20-25 minutes, or until tender and golden brown.
Make the Caesar dressing: In a blender or food processor, combine all dressing ingredients. Blend until smooth and creamy, adjust seasoning with salt and pepper to taste.
Assemble the salad: In a large bowl, toss together the romaine lettuce, roasted potatoes, crispy chicken, and parmesan cheese. Drizzle with the homemade Caesar dressing and toss to coat. Serve immediately and enjoy!