Creamy Cheddar Potato Casserole – Ruth’s Chris Copycat Recipe

There’s something undeniably comforting about pulling a bubbling, golden casserole straight from the oven on a cozy evening. Whether you’re hosting a holiday feast, gathering for Sunday family dinner, or celebrating with friends, a rich and creamy potato side dish often becomes the centerpiece everyone gravitates toward. This Ruth’s Chris–inspired Loaded Cheddar Potato Casserole captures the indulgent spirit of the steakhouse favorite that so many people have come to love.

The first time I tasted a version of this dish, it instantly brought back memories of warm family potlucks—tables lined with handwritten recipe cards, laughter filling the room, and everyone eagerly going back for seconds. This homemade interpretation delivers that same comforting experience. Tender, velvety potatoes blend with sharp cheddar cheese and savory mix-ins, all baked together until perfectly creamy and golden on top. It’s the kind of side dish that doesn’t just complement a meal—it steals the spotlight and turns any dinner into a memorable occasion.

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What Makes This Potato Casserole So Special?

Inspired by the iconic side dish served at Ruth’s Chris Steak House, this loaded cheddar potato casserole brings steakhouse-quality flavor right into your own kitchen. It’s not just another potato side—it’s rich, indulgent, and designed to impress.

So what truly sets it apart?

Ultra-creamy texture
A rich dairy base creates a velvety, smooth consistency that feels luxurious in every bite. The combination of cream, butter, and cheese blends seamlessly with the potatoes, giving the casserole its signature indulgent texture.

Sharp cheddar cheese for bold flavor
Instead of mild cheese that fades into the background, sharp cheddar adds depth and character. Its slightly tangy bite balances the richness and ensures the dish is flavorful, not just creamy.

Tender, fluffy potatoes throughout
Each spoonful is filled with soft, perfectly cooked potatoes that remain fluffy inside while soaking up all that cheesy goodness. The texture strikes the ideal balance between smooth and hearty.

Golden, bubbly top layer
As it bakes, the top develops a lightly crisp, golden crust with bubbling melted cheese that’s impossible to resist. That contrast between creamy interior and slightly crisp top makes every serving extra satisfying.

Unlike simple mashed potatoes, this casserole is baked to perfection, allowing the flavors to fully meld and intensify. The result is a comforting, crowd-pleasing side dish that pairs beautifully with grilled chicken, roasted vegetables, steak, or any festive main course. It’s hearty, satisfying, and guaranteed to earn requests for seconds.

Ingredients You’ll Need

Using simple pantry staples and fresh ingredients, this casserole comes together easily while delivering maximum flavor.

• 3 pounds russet potatoes, peeled and cut into 1-inch cubes
• 1 cup (240 ml) sour cream
• ½ cup (115 g) unsalted butter, softened
• ½ cup (120 ml) whole milk
• 2 cups (200 g) sharp cheddar cheese, freshly shredded
• ½ cup (50 g) mild cheddar cheese, shredded
• 4 green onions, finely sliced
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1 teaspoon salt (or to taste)
• ½ teaspoon freshly ground black pepper
• ½ teaspoon paprika
• ½ cup (60 g) crushed buttery crackers (optional topping)
• 1 tablespoon olive oil (for greasing the baking dish)

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Step-by-Step Instructions

1. Prepare the Potatoes

Place the cubed potatoes in a large pot and cover with cold water. Add a generous pinch of salt. Bring to a boil over medium-high heat and cook for 15–20 minutes, or until fork-tender. Drain thoroughly and allow excess moisture to evaporate for a few minutes.

2. Mash to Creamy Perfection

In a large mixing bowl, combine the hot potatoes, sour cream, butter, and milk. Mash until smooth and creamy, but still slightly textured. Stir in garlic powder, onion powder, salt, black pepper, and paprika.

3. Add the Cheesy Goodness

Fold in 1½ cups (150 g) of the sharp cheddar and all of the mild cheddar. Reserve the remaining ½ cup (50 g) sharp cheddar for topping. Add the sliced green onions and gently mix until evenly distributed.

4. Assemble the Casserole

Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish with olive oil. Spread the potato mixture evenly into the dish. Sprinkle the reserved cheddar over the top. If using, add crushed buttery crackers for a crunchy finish.

5. Bake Until Golden

Bake uncovered for 20–25 minutes, or until the top is melted, bubbly, and lightly golden. Let the casserole rest for 5–10 minutes before serving. This allows the layers to set and makes serving easier.

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Tips for the Best Loaded Cheddar Potato Casserole

Choose the right potatoes. Russet potatoes are ideal because they mash smoothly and absorb flavors beautifully. Shred your own cheese. Pre-shredded cheese contains anti-caking agents that can affect melting. Freshly shredded cheese creates a creamier result. Don’t overmix. Overworking the potatoes can make them gummy. Mash just until smooth. Make it ahead. Assemble the casserole up to 24 hours in advance, cover tightly, and refrigerate. Bake just before serving.

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Delicious Variations to Try

Extra Cheesy Version

Add an additional ½ cup (50 g) mozzarella cheese for an even stretchier texture.

Garlic Lover’s Twist

Sauté 2 cloves of minced garlic in 1 tablespoon butter and stir into the mash.

Spicy Kick

Mix in ¼ teaspoon cayenne pepper or finely diced jalapeños for gentle heat.

Herb-Infused Upgrade

Add 1 tablespoon chopped fresh parsley or chives for brightness.

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Perfect Pairings for This Side Dish

This casserole shines next to:

• Grilled or roasted chicken
• Herb-crusted salmon
• Seared steak
• Roasted seasonal vegetables
• Holiday turkey dinners

Its creamy richness balances beautifully with savory proteins and fresh greens.

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Frequently Asked Questions

1. Can I make Ruth’s Chris Loaded Cheddar Potato Casserole ahead of time?

Absolutely. This casserole is an excellent make-ahead dish, making it perfect for holidays or dinner parties. After preparing the mashed potato mixture and assembling it in the baking dish, allow it to cool completely. Cover the dish tightly with plastic wrap or aluminum foil and refrigerate for up to 24 hours. When ready to bake, remove it from the refrigerator about 30 minutes beforehand to allow it to come closer to room temperature. This ensures even baking. You may need to add an additional 5–10 minutes to the baking time if it’s still chilled in the center. If you want to prepare it even further in advance, you can freeze the unbaked casserole. Wrap it tightly in two layers of foil and freeze for up to 2 months. Thaw overnight in the refrigerator before baking. The texture remains creamy and delicious, especially if you use freshly shredded cheese.

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2. What type of potatoes work best for this recipe?

Russet potatoes are the top choice for this casserole because they are high in starch and low in moisture. This creates a fluffy, smooth texture when mashed. Their neutral flavor also allows the cheese and seasonings to shine. Yukon Gold potatoes can also work if you prefer a slightly creamier, buttery texture. They are naturally more moist and rich. However, avoid waxy potatoes like red potatoes, as they tend to hold their shape and can create a denser, less cohesive casserole. For best results, cut your potatoes evenly so they cook at the same rate. Always start them in cold, salted water to ensure even cooking from the inside out.

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3. How do I keep the casserole from becoming gummy?

The key to avoiding gummy mashed potatoes is gentle handling. Overmixing activates the starch in potatoes, which can create a sticky texture. After draining, allow steam to escape for a few minutes before mashing. This helps reduce excess moisture. Use a potato masher rather than a hand mixer if possible, as electric mixers can easily overwork the potatoes. Also, make sure your butter and milk are at room temperature or slightly warmed before mixing them in. Cold dairy can cause the potatoes to stiffen and require extra mixing, increasing the risk of gumminess. By following these steps, you’ll achieve a smooth, creamy consistency every time.

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4. Can I customize this casserole to suit different tastes?

Yes, this recipe is highly adaptable. For added protein, you can stir in cooked shredded chicken or sautéed mushrooms. To enhance the flavor profile, try incorporating caramelized onions or roasted garlic. For a lighter version, you may substitute Greek yogurt for sour cream and use reduced-fat cheese. The texture will still be creamy, though slightly less rich. If serving at a gathering, consider dividing the casserole into smaller ramekins for individual portions. This not only looks elegant but also ensures everyone gets that perfectly golden top layer. This flexibility makes Ruth’s Chris Loaded Cheddar Potato Casserole a reliable, crowd-pleasing side dish for nearly any occasion.

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Final Thoughts

There’s a reason this loaded cheddar potato casserole has become such a beloved classic. It delivers everything we crave in comfort food: creamy texture, rich cheese flavor, and that irresistible golden top that signals something special is about to be served. What makes this dish truly stand out is its balance. It’s indulgent without being overwhelming, flavorful without being complicated. The simple combination of potatoes, cheddar, and sour cream creates a depth that feels both nostalgic and restaurant-worthy. Each bite offers warmth and familiarity, making it ideal for family dinners, holiday celebrations, or anytime you want to elevate your side dish game. Another reason this casserole deserves a permanent place in your recipe collection is its versatility. It pairs beautifully with everything from roasted chicken to elegant steak dinners, and it adapts easily to personal tastes. Whether you add herbs, spice, or extra cheese, the base recipe remains reliable and satisfying. If you’re looking for a dish that brings people back for seconds and sparks recipe requests, this is it. The next time you want to recreate steakhouse comfort at home, let this creamy, cheesy masterpiece take center stage on your table. Print