Preheat your oven to 375°F (190°C) and grease a 9×13-inch baking dish.
In a large bowl, mix together the shredded chicken, Alfredo sauce, sour cream, and 1 cup of shredded mozzarella cheese. Season with salt and pepper to taste.
Spread the chicken mixture evenly in the prepared baking dish.
Arrange the tater tots in a single layer on top of the chicken mixture.
Sprinkle the remaining 1 cup of shredded mozzarella cheese over the tater tots.
Bake for 25-30 minutes, or until the tater tots are golden and the cheese is melted and bubbly.
Garnish with chopped parsley before serving.
Notes
Leftovers: Store in an airtight container in the refrigerator for up to 3 days.
Freezing: Assemble the casserole, cover tightly, and freeze for up to 2 months. Thaw overnight before baking.
Variations: Add vegetables like broccoli or spinach for extra nutrition, or spice it up with red pepper flakes.
