Begin by boiling the potatoes in a large pot until they achieve a tender consistency. Once cooked, drain and set aside.
Place the chicken in a mixing bowl and drizzle with olive oil. Season with salt, pepper, garlic blend, and smoked paprika. Stir thoroughly to ensure each piece is evenly coated.
Proceed to cook the chicken. If using an air fryer, set it to 400 degrees Fahrenheit and cook for approximately 8 minutes, or until the internal temperature of the chicken reaches 165 degrees Fahrenheit.
In a separate bowl, combine the mayonnaise, sour cream, whole milk, and Ranch dressing seasoning mix. Whisk together until the dressing is smooth.
Prepare a 9x13 inch baking dish by greasing it lightly. Mix the cooked potatoes, seasoned chicken, and prepared dressing in the dish, ensuring even distribution.
Sprinkle the grated Sharp cheddar and Smoked gouda cheeses over the top of the mixture in the baking dish.
Place the dish in a preheated oven and bake at a suitable temperature for 15-20 minutes, or until the cheese has melted and is slightly golden.
Once baked, remove from the oven and top with the cooked, crumbled bacon.
If desired, garnish with chopped green onions before serving.