Beefy Potato Casserole Recipe: Hearty One-Pan Dinner With Crispy Celery Crown

This beefy potato casserole recipe transforms humble ingredients into a crispy-crowned, savory masterpiece that feeds a crowd with minimal effort. The secret lies in layering tender potatoes with seasoned ground beef, rich broth, and a golden celery topping that crackles like autumn leaves under the broiler.

I developed this version after years of testing—too many soggy middles and undercooked beefs—until I cracked the code for perfectly crispy edges and creamy centers every time.

The beauty of this dish is its one-pan simplicity: brown the beef first to build deep flavor, then layer potatoes in even rows so they cook uniformly.

A touch of cream cheese in the broth keeps the filling luscious without curdling, while the celery crown adds a textural contrast that turns simple potatoes into something restaurant-worthy. It’s the kind of casserole that disappears faster than you can say "seconds, please?"

By the time it emerges from the oven, you’ll have a dish that’s comforting yet elegant—golden, bubbling, and topped with that signature crispy celery crown. The beef stays juicy, the potatoes melt in your mouth, and the aroma alone will have everyone gathering around the table.

This is the casserole that makes weeknight dinners feel like a celebration.

Serve with a simple green salad or crusty bread to soak up every last bit of that savory sauce. The leftovers reheat beautifully too, making it perfect for meal prep. Here’s how to make it—foolproof, hearty, and impossible to resist.

Ingredients for beefy potato casserole

Here's everything you need to create this hearty beefy potato casserole with a crispy celery crown.

The ground beef is where the flavor starts—80/20 fat ratio gives you that juicy, savory bite. Costco or Walmart usually have the best prices for bulk packages, and you can't beat the convenience of pre-ground. If you're feeling fancy, grab grass-fed from the butcher section, but honestly, the regular stuff works just fine. For the potatoes, Russets are non-negotiable—they hold their shape and absorb flavors beautifully. Peel them first to save time, and slice them evenly so they cook uniformly. The celery crown is all about texture, so look for fresh, crisp stalks with no brown spots.

No heavy cream? Half-and-half or coconut cream works in a pinch, though the texture won't be quite as rich. Running low on cream cheese? Substitute sour cream at half the amount, but it won't melt as smoothly. The celery crown can be made ahead—just store the dry ingredients in a jar for up to 3 days. If you're out of thyme, dried oregano or marjoram will do in a bind, but thyme's earthy note is what ties the whole dish together. For the Parmesan, pre-grated gets clumpy, so grate it yourself from a wedge if you can. And if you're worried about the celery crown getting soggy, broil it for just 2-3 minutes at the end—watch it like a hawk!

This casserole reheats like a dream—just cover it with foil and warm in the oven at 350°F for 20 minutes. It keeps well in the fridge for 4-5 days, though I rarely let it last that long. For meal prep, assemble it the night before and refrigerate uncovered so the flavors meld overnight. Freezes beautifully too—up to 3 months if you wrap it tightly. The celery crown freezes well too, so you can make a big batch and save half for another recipe. Just thaw it in the fridge before reheating.

Step-by-step instructions for beefy potato casserole

Here's how to create a rich, hearty casserole with a crispy celery crown that'll impress everyone.

In a large skillet over medium-high heat, break apart the 1.5 lb ground beef (80/20) with a wooden spoon, letting it brown in batches if needed. You want the beef to reach an internal temperature of 160°F—this ensures it's fully cooked but still retains moisture. As it browns, the fat will render out, so don't drain it completely.

Once the beef is fully browned, add the diced yellow onion and minced garlic cloves to the skillet. Cook for 4-5 minutes until the onions become translucent and the garlic releases its aromatic fragrance. This step is where all the foundational flavors develop, so don't rush it. The onions should soften and caramelize slightly, adding sweetness to the beef mixture.

While the beef cooks, peel and slice the 3 lb russet potatoes into ½-inch thick rounds. You'll need about 6 cups of sliced potatoes for this recipe. Toss the potato slices with 1.5 tsp salt, 1.5 tsp ground black pepper, and 1 tbsp dried thyme in a large bowl. This seasoning will penetrate the potatoes as they bake, ensuring every bite is flavorful.

In a separate bowl, whisk together the 2 cups beef broth, 0.5 cup heavy cream, and 4 oz softened cream cheese until smooth. The cream cheese will blend seamlessly into the broth, creating a velvety sauce that coats the potatoes beautifully. This mixture is the secret to that creamy, comforting texture that makes this casserole so satisfying.

In a 9x13-inch baking dish, create the first layer by arranging half of the seasoned potato slices in an even layer at the bottom. Pour half of the beef mixture over the potatoes, spreading it evenly. Then, add the remaining potato slices on top, followed by the rest of the beef mixture. The potatoes should be mostly submerged in the sauce, but a few slices can peek through—they'll absorb the flavors as they bake.

Cover the baking dish tightly with aluminum foil and transfer it to a 375°F preheated oven. Bake for 45 minutes, allowing the potatoes to soften and absorb all that rich beef and cream mixture. This initial baking time ensures the potatoes cook through without drying out, while the beef mixture infuses them with deep, savory flavors.

While the casserole bakes, prepare the celery crown topping. In a skillet over medium heat, melt the 0.5 cup butter and cook the thinly sliced celery stalks for 5-6 minutes until they soften slightly. Add the 0.25 cup all-purpose flour and stir for 1 minute to create a roux that will help bind the crown together.

Pour in ½ cup of the reserved beef broth from the casserole and stir until the mixture thickens into a paste. Remove from heat and fold in the 0.5 cup freshly grated parmesan cheese. The mixture should be thick enough to hold its shape when spread but still spreadable. This crown is what gives the casserole its signature crispy texture and adds a delightful contrast to the creamy potatoes.

After the initial 45 minutes of baking, remove the foil from the casserole and spread the celery mixture evenly over the top. The crown should cover the entire surface, creating a golden, crispy barrier that'll bake to perfection. Return the casserole to the oven and bake uncovered for an additional 15-20 minutes until the celery crown turns a deep golden brown and the edges are crispy.

Let the casserole rest for 10 minutes before serving. This resting period allows the juices to redistribute, ensuring each forkful is moist and flavorful. The crispy celery crown should hold its shape when lifted, offering a satisfying crunch with every bite. Serve with a side of crusty bread to soak up any extra sauce, and enjoy this hearty, comforting dish that's perfect for any gathering.

Flavor customization for this dish

Spicy Kick

Add 1-2 tablespoons of Penzeys hot honey to the beef mixture before assembling the casserole for a sweet-spicy contrast. For extra heat, stir ½ teaspoon cayenne pepper into the celery crown topping—it crisps beautifully while adding a fiery finish.

I love this combo because the honey caramelizes slightly during baking, balancing the spice perfectly. 🌶️

Cheesy Twist

Swap the celery crown for a browned buttery breadcrumb topping mixed with ½ cup shredded cheddar and ¼ cup grated Parmesan. Press it firmly onto the casserole and broil for 3-4 minutes until golden and bubbly.