Ruth’s Chris Creamy Parmesan Potato Casserole

Craving restaurant-quality potatoes au gratin? This easy Ruth’s Chris–inspired version brings all the flavor and elegance of the steakhouse right to your home kitchen. These creamy potatoes are baked to perfection with a cheesy crust that’s irresistible.

Mamaw’s Kitchen

Updated on Wed, 25 Mar 2026 06:40:29 GMT

Comforting Memories of Ruth’s Chris Creamy Parmesan Potato Casserole

As the aroma of Ruth’s Chris Creamy Parmesan Potato Casserole wafts through the air, it transports me back to warm family gatherings, where laughter fills the room and the clinking of cutlery resonates against the backdrop of spirited conversations. The creamy richness of the heavy cream melds with the nutty, sharp undertones of the Parmesan cheese, creating an inviting embrace of flavors that beckons everyone to the table. Each layer of thinly sliced Yukon gold potatoes, lovingly nestled in the baking dish, soaks up the velvety cream mixture, turning into something sublime. The golden crust, bubbling with anticipation, promises a delightful crunch that contrasts beautifully with the soft, tender potatoes beneath.

The first taste is always a moment of delight, as the creamy texture envelops my palate, and the flavors dance harmoniously. The garlic adds an aromatic touch that elevates the dish, while the cheeses provide a depth that is both comforting and indulgent. I remember the smiles exchanged around the dinner table, the way my grandmother would nod approvingly as we all savored each bite, reminiscing about the joy of family and shared meals. This dish isn’t just food; it’s a vessel of memory, a reminder of togetherness that warms the heart as much as it does the stomach.

Why You’ll Love It

  • Indulge in the creamy, cheesy goodness that makes every bite feel like a warm hug.
  • Experience the aromatic garlic and balanced flavors that elevate ordinary potatoes into a star dish.
  • Perfect for gatherings, this casserole is a crowd-pleaser that brings everyone to the table.
  • Easy to prepare, allowing you to spend more time with loved ones and less time in the kitchen.
  • Leftovers are a dream, as the flavors deepen overnight, making them just as delightful the next day.

Ingredients You’ll Need

  • 2 ½ lbs Yukon gold potatoes (approximately 1.13 kg), thinly sliced for a creamy texture.
  • 2 cups heavy cream (about 480 ml), rich and velvety, essential for that creamy base.
  • 1 cup whole milk (approximately 240 ml), to balance the richness of the cream.
  • 3 cloves garlic, minced for an aromatic depth that enhances the dish.
  • 1 ½ cups grated Parmesan cheese (about 150 grams), sharp and nutty for an irresistible flavor.
  • 1 cup shredded mozzarella cheese (approximately 100 grams), for a gooey, melty topping.
  • Salt & pepper to taste, essential for bringing the flavors together.
  • 2 tbsp butter, for greasing the baking dish to ensure easy serving.
  • Fresh parsley, for garnish that adds a pop of color and freshness.

How to Make Ruth’s Chris Creamy Parmesan Potato Casserole

Preparation is Key

Start by preheating your oven to 375°F (190°C), setting the stage for the comforting warmth that will soon fill your kitchen. Next, take a 9×13-inch baking dish and generously grease it with butter, ensuring that every corner is covered to prevent the creamy goodness from sticking. This initial step not only helps with the cooking process but also adds a touch of richness to the overall flavor.

Creating the Creamy Mixture

In a medium-sized saucepan, combine the heavy cream, whole milk, minced garlic, salt, and pepper. Heat the mixture gently over medium heat, stirring consistently until it becomes warm but not boiling—this is crucial as boiling can alter the texture and flavor. The aroma of garlic will begin to fill your kitchen, setting the stage for the layers of flavor about to unfold.

Layering the Potatoes

Now comes the fun part: layering! Place half of the thinly sliced potatoes in the greased baking dish, arranging them evenly. Pour half of the warm cream mixture over the potatoes, allowing it to seep through and coat them. Then, sprinkle half of the grated Parmesan and shredded mozzarella cheese over the layer, creating a cheesy haven. Repeat this process with the remaining potatoes, cream mixture, and cheeses, ensuring the layers are even and inviting.

Baking to Perfection

Cover the baking dish with aluminum foil to keep the moisture in while baking. Place it in the preheated oven and let it bake for 45 minutes. After this initial phase, carefully remove the foil—this is when the magic happens. The top will begin to bubble, and you’ll be tempted by the delicious aroma. Bake for an additional 25 to 30 minutes, or until the top is golden brown and the casserole is bubbling joyously.

Finishing Touches

Once the timer goes off, resist the urge to dive in immediately. Let the casserole rest for about 10 minutes to allow the layers to settle and make serving easier. As you prepare to serve, sprinkle freshly chopped parsley over the top for a burst of color and freshness. This simple garnish brightens the dish, both visually and flavor-wise, enhancing the overall experience.

Tips for Success

  • For the best texture, use a mandoline slicer to ensure even potato slices that cook uniformly.
  • Let the cream mixture cool slightly after warming to avoid curdling when combined with the potatoes.
  • Cover the casserole with foil during the initial baking to retain moisture, ensuring the potatoes cook through.
  • For an extra crispy top, broil for a minute or two after baking, but keep a close eye to prevent burning.
  • Allow the casserole to rest before serving; this helps the layers set for easier slicing.

Variations to Try

  • Incorporate sautéed mushrooms or spinach for added flavor and nutrition.
  • Consider mixing different cheeses, such as Gruyère or cheddar, for a unique twist on the classic flavor.
  • Add cooked, crumbled beef bacon or turkey beef bacon for a smoky note, if desired.
  • Try infusing the cream mixture with herbs like thyme or rosemary for a fragrant variation.
  • Serve with a side of roasted vegetables for a complete and vibrant meal.

Frequently Asked Questions

→ Can I prepare this casserole in advance?
Yes, you can prepare it a day ahead. Just assemble the casserole and store it covered in the refrigerator. Bake it right before serving, adding a few extra minutes to the cooking time if baking from cold.

→ How do I store leftovers?
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven for the best texture, or in the microwave for a quicker option.

→ Can I use other types of potatoes?
While Yukon golds are ideal for their creamy texture, you can experiment with russets or red potatoes, but adjust cooking times as needed since they may vary in moisture content.

Serving Suggestions

To serve, cut the casserole into squares and plate it alongside a fresh green salad or roasted vegetables for a balanced meal. A sprinkle of additional parsley can add a vibrant touch, and a drizzle of olive oil enhances the presentation. This dish pairs beautifully with grilled chicken or fish for a delightful contrast.

Final Thoughts

As you savor the last bites of Ruth’s Chris Creamy Parmesan Potato Casserole, let the comforting memories wash over you. This dish is more than just a recipe; it’s a celebration of love, family, and shared moments. I encourage you to give it a try and create your own cherished memories around the dinner table.

Chef’s Notes & Pro Tips

  • For a deeper flavor, consider roasting the garlic before adding it to the cream mixture.
  • If you prefer a lighter version, substitute half of the heavy cream with additional milk.
  • Experiment with different herbs in the cream mixture, such as chives or dill, for a fresh twist.
  • Use freshly grated cheese instead of pre-packaged for a creamier melt and superior flavor.
  • Don’t skip the resting time; it’s essential for the best texture and flavor development.

Ruth's Chris Creamy Parmesan Potato Casserole

Mamaw Kitchen
Delicious Ruth's Chris Creamy Parmesan Potato Casserole recipe with step-by-step instructions.
Prep Time 15 minutes
Cook Time 30 minutes
Total Time 45 minutes
Servings 4 servings

Ingredients
  

  • 2 ½ lbs Yukon gold potatoes approximately 1.13 kg
  • 2 cups heavy cream about 480 ml
  • 1 cup whole milk approximately 240 ml
  • 3 cloves garlic
  • 1 ½ cups grated Parmesan cheese about 150 grams
  • 1 cup shredded mozzarella cheese approximately 100 grams
  • Salt pepper to taste
  • 2 tbsp butter
  • Fresh parsley

Instructions
 

  • Preparation is Key Start by preheating your oven to 375°F (190°C), setting the stage for the comforting warmth that will soon fill your kitchen. Next, take a 9x13-inch baking dish and generously grease it with butter, ensuring that every corner is covered to prevent the creamy goodness from sticking.
  • Creating the Creamy Mixture In a medium-sized saucepan, combine the heavy cream, whole milk, minced garlic, salt, and pepper. Heat the mixture gently over medium heat, stirring consistently until it becomes warm but not boiling—this is crucial as boiling can alter the texture and flavor.
  • Layering the Potatoes Now comes the fun part: layering! Place half of the thinly sliced potatoes in the greased baking dish, arranging them evenly.
  • Baking to Perfection Cover the baking dish with aluminum foil to keep the moisture in while baking. Place it in the preheated oven and let it bake for 45 minutes.
  • Finishing Touches Once the timer goes off, resist the urge to dive in immediately. Let the casserole rest for about 10 minutes to allow the layers to settle and make serving easier.

Notes

  • For the best texture, use a mandoline slicer to ensure even potato slices that cook uniformly.
  • Let the cream mixture cool slightly after warming to avoid curdling when combined with the potatoes.

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