Preheat oven to 375°F (190°C). Grease a 9x13-inch baking dish.
In a large mixing bowl, combine sour cream, cream cheese, cheddar cheese, garlic powder, onion powder, salt, and pepper until smooth.
Add the hash browns to the mixture and fold gently to combine.
Transfer the potato mixture to the prepared baking dish, spreading it evenly.
In a separate bowl, mix crushed crackers with melted butter. Sprinkle over the top of the casserole.
Bake for 40-45 minutes, or until the topping is golden brown and the casserole is bubbling.
Serve hot and enjoy!
Alternate Instructions:
Mix sour cream, cream cheese, cheddar, and seasonings in a bowl.
Combine with hash browns, then layer into a baking dish.
Top with buttered cracker crumbs and bake until golden and bubbly.