‘Christmas fan favorite’—Just 3 ingredients. I make it all season because it’s too easy not to.

This incredibly easy casserole uses just three ingredients to create a creamy, flavorful side dish perfect for any holiday or gathering.

3-Ingredient Holiday Ranch Potato Casserole

Ingredients:

How To Make 3-Ingredient Holiday Ranch Potato Casserole:

Step 1: Preheat Oven and Prep Pan: Preheat your oven to 350F (175C). Lightly grease a 9×13-inch baking dish with cooking spray or oil.

Step 2: Prepare Ranch Base: In a large mixing bowl, whisk together the 1 container sour cream and the 1 packet ranch seasoning mix until the seasoning is evenly distributed and no dry pockets remain.

Step 3: Combine and Transfer: Add the 1 bag of thawed hash brown potatoes to the bowl and gently fold until all the potatoes are coated in the ranch sour cream mixture. Transfer the potato mixture to the prepared baking dish and spread it into an even layer, pressing down lightly.

Step 4: Bake: Bake uncovered for 40-50 minutes, or until the casserole is bubbly around the edges and the top is lightly golden.

Step 5: Serve: Let the casserole rest for about 5-10 minutes before serving so it can set slightly and scoop more cleanly.