Cook the bacon in a skillet over medium heat until crispy. Remove, drain on paper towels, and chop into small pieces. The leftover bacon fat can even be used to brush the fries for extra flavor.
Peel and cut the potatoes into thin, even sticks. Toss them in a large bowl with olive oil, garlic powder, onion powder, dill, salt, and cayenne. Make sure each piece is coated evenly so they bake crisp and golden.
Preheat your oven to 425°F (220°C). Arrange the fries in a single layer on a baking sheet—don’t overcrowd! Bake for 15 minutes, flip, and continue baking for another 10-15 minutes until crispy and lightly browned.
While the fries bake, combine the shredded cooked chicken with the ranch dip in a small saucepan or microwave-safe bowl. Warm it gently until heated through, just enough for the ranch to soak into the chicken.
Once fries are crisp, remove them from the oven and top with the chicken-ranch mixture, chopped bacon, cheddar, and mozzarella. Return to the oven for about 3-5 minutes, or until the cheese is fully melted and bubbly.
Sprinkle chopped chives over the top for freshness and color. Serve hot right off the sheet pan or transfer to a platter if you’re serving guests.