Preheat the oven to 375°F (190°C) and grease a 9×13-inch baking dish.

In a large mixing bowl, combine the shredded chicken, crumbled bacon, and ranch dressing. Mix until evenly coated.

Spread the chicken and bacon mixture evenly across the bottom of the greased baking dish. Sprinkle shredded cheddar cheese over the top.

Arrange the frozen tater tots in a single layer over the cheese, covering the entire casserole.

Bake for 25–30 minutes, or until the tater tots are golden brown and crispy.

Remove from the oven and let cool slightly before serving. Enjoy!