3-Ingredient Holiday Ranch Potato Casserole

This 3-Ingredient Holiday Ranch Potato Casserole is the kind of effortless dish that becomes a seasonal tradition without even trying. With only a handful of ingredients and almost no prep, it bakes into a creamy, cozy, irresistibly flavorful side that feels right at home on any festive table. The ranch seasoning adds a savory, herb-packed depth, while the heavy cream transforms the potatoes into luscious, velvety layers.

Perfect for busy holiday cooking, potlucks, or weeknight comfort, this casserole is simple enough for any cook but indulgent enough to earn rave reviews. The potatoes soften beautifully as they bake, soaking up the seasoned cream and developing lightly golden edges. The result is rich, rustic, and totally satisfying — a dish that tastes like far more effort than it actually takes.

Its ease makes it endlessly adaptable, too. Add cheese, herbs, or toppings, and it shifts from minimalist to decadent in seconds. Even as written, though, it’s a crowd-pleasing favorite that delivers that cozy, comforting “holiday” feeling with almost no work at all.

Servings: 6
Prep Time: 10 minutes
Cook Time: 45 minutes
Total Time: 55 minutes

Ingredients

• 6 cups thinly sliced potatoes (Russet or Yukon Gold)
• 1 packet ranch seasoning mix
• 2 cups heavy cream (or half-and-half)

Instructions

Preheat your oven to 375°F (190°C).
Lightly grease a casserole dish and layer the sliced potatoes evenly inside.
In a bowl, whisk together the heavy cream and ranch seasoning until smooth.
Pour the ranch cream mixture evenly over the potatoes, making sure all layers are coated.
Cover the dish with foil and bake for 30 minutes.
Remove the foil and bake for another 15 minutes, or until golden, bubbly, and tender.
Garnish with fresh herbs if desired and serve warm.

Variations

• Add shredded cheddar, Monterey Jack, or Parmesan for a cheesy gratin-style casserole.
• Mix in cooked bacon bits or ham for a heartier holiday side.
• Add sliced onions or garlic for deeper flavor.
• Top with crushed buttery crackers or breadcrumbs for a crunchy finish.

Tips

• Slice potatoes evenly so they cook uniformly.
• Yukon Golds give a creamier texture, while Russets create a soft, classic casserole.
• Let the casserole rest for 5–10 minutes before serving so the layers set beautifully.
• For extra richness, sprinkle cheese on top before the final bake to create a golden, festive crust.