The Ultimate Cheesy Ground Beef & Potato Casserole: One-Pan Comfort!

I still remember chilly winter evenings, walking in the door to the most aromatic smell. It always meant my mom was making her incredible Cheesy Ground Beef & Potato Casserole, a dish that brought so much warmth.

My first attempt at this glorious dish in college was, well, a disaster. I undercooked the potatoes and burnt the cheese to a crisp, far from the comforting meal I remembered. Let’s just say my roommates opted for takeout that night!

Now, I’ve perfected my own satisfying Cheesy Ground Beef & Potato Casserole, complete with golden, tender potatoes. It’s become a nostalgic staple, a delicious hug in a dish that always hits the spot.

Ingredients for One-Pan Cheesy Ground Beef & Potato Casserole

• 1 ½ pounds lean ground beef (80/20): The savory base of this comforting casserole. Opt for lean ground beef (80/20) to avoid excessive grease.
• 2 pounds Yukon Gold potatoes, peeled and thinly sliced: These star potatoes provide tender texture. Slice uniformly for even cooking; no more undercooked disasters!
• 2 cups shredded sharp cheddar cheese: The quintessential gooey cheese element. Freshly shredding provides superior melting and flavor for the ultimate cheesy experience.
• 1 large yellow onion, chopped: An essential aromatic foundation. It adds a sweet, savory depth to the beef mixture.
• 3 cloves garlic, minced: Provides a pungent, savory kick that enhances the overall flavor of the beef. Don't burn it!
• 2 cups beef broth (low sodium): Adds moisture and a rich, savory liquid foundation. Low sodium allows better control over seasoning.
• 2 tablespoons olive oil: For sautéing the aromatics and browning the beef. Use a good quality extra virgin olive oil.
• 2 tablespoons tomato paste: Concentrated umami booster. It adds a deep, rich flavor to the beef sauce.
• 1 tablespoon Worcestershire sauce: A secret weapon for beef. It adds complex savory notes and incredible depth of flavor.
• 2 tablespoons all-purpose flour: Helps thicken the sauce slightly, ensuring a cohesive, comforting texture for the casserole.
• 1 cup whole milk: Creates a creamy, rich sauce that binds all the flavors together. Whole milk provides the best consistency.
• 1 ½ teaspoons kosher salt: Crucial for seasoning every layer. Adjust to taste, especially if using salted broth.
• ½ teaspoon black pepper, freshly ground: Adds a pungent warmth. Freshly ground pepper offers the best aroma and flavor.
• 1 teaspoon dried thyme: A classic herb for beef and potatoes. It brings an earthy, aromatic note to the entire dish.
• ¼ cup fresh parsley, chopped: Adds a burst of freshness and color. Stir it in at the very end.
• 2 tablespoons fresh green onions, sliced: Provides a mild, fresh oniony bite and a vibrant garnish. Sprinkle just before serving.

How to Make One-Pan Cheesy Ground Beef & Potato Casserole

Brown Beef & Sauté:

Start by browning your lean ground beef with olive oil in an oven-safe skillet over medium-high heat. Drain excess fat. Add chopped yellow onion and minced garlic, cooking until softened and fragrant. This builds the flavorful foundation for your One-Pan Cheesy Ground Beef & Potato Casserole.

Build Flavor Base:

Stir in tomato paste and Worcestershire sauce with the beef mixture, cooking for 1 minute to deepen the flavors. Sprinkle in all-purpose flour, stirring for another minute until fully incorporated, creating a rich base for the delicious sauce that will bind everything together.

Simmer Sauce:

Gradually whisk in beef broth and whole milk until smooth. Stir in kosher salt, freshly ground black pepper, and dried thyme. Bring the mixture to a gentle simmer, cooking for 3-5 minutes until the sauce thickens slightly, ensuring it coats the beef beautifully.

Layer Casserole:

Arrange half of the thinly sliced Yukon Gold potatoes over the beef mixture in the skillet. Top with half of the shredded sharp cheddar cheese. Repeat layers with the remaining potatoes and cheese, ensuring even distribution for your One-Pan Cheesy Ground Beef & Potato Casserole.

Bake Casserole:

Cover the skillet tightly with foil and bake at 375°F (190°C) for 35-40 minutes, or until potatoes are tender when pierced. Remove foil and bake for another 10-15 minutes until the cheese is bubbly and golden brown.

Garnish & Enjoy:

Let the One-Pan Cheesy Ground Beef & Potato Casserole rest for 5-10 minutes before serving. Garnish generously with fresh chopped parsley and sliced fresh green onions. This comforting dish is now ready to be a delicious hug in a bowl.

There's something so comforting about the sound of the sauce simmering gently, promising a delicious meal. Even with a sprinkle of flour on my cheek and a few potato slices scattered on the counter, the process feels right. The kitchen might be a bit chaotic, but the rich aroma of savory beef, onions, and thyme soon fills the entire house.

As I layer the golden potatoes and watch the cheese begin to bubble, for a moment, all the daily chaos melts away. It's in these moments, creating a Cheesy Ground Beef & Potato Casserole, that I remember why I love to cook: to create warmth and delicious memories for those I love.

How to Store One-Pan Cheesy Ground Beef & Potato Casserole

To store your Cheesy Beef & Potato Casserole, allow it to cool completely, then transfer leftovers to an airtight container. Refrigerate promptly for optimal freshness, where it will last for 3-4 days. Don't leave it out too long, as I once did, leading to a sad, spoiled dinner. Discard if you notice any off smells or mold.

For make-ahead convenience, prepare the beef mixture and slice potatoes up to 2 days prior, storing them separately in the fridge. Assemble and bake the casserole fresh when ready. When reheating, cover loosely to prevent drying, and a splash of beef broth can help maintain moisture.

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What to Serve with One-Pan Cheesy Ground Beef & Potato Casserole

To serve this comforting casserole, simply bring the skillet straight to the table for a family-style meal! Garnish with extra fresh parsley for a vibrant touch. It's perfect served warm, right from the oven, allowing the gooey cheese to shine. Pair it with a crisp green salad tossed in a light vinaigrette or some warm, crusty bread to soak up all the savory goodness.

I personally love to serve and enjoy this casserole with a simple side of steamed green beans. The fresh, crisp vegetables perfectly balance the rich, savory flavors, making every bite incredibly satisfying.

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Frequently Asked Questions

→ Can I substitute different potatoes in this Cheesy Ground Beef & Potato Casserole?

Yes, you can. While Yukon Golds are great for tenderness, Russets or red potatoes work too. Just ensure they are sliced uniformly thin; otherwise, they might cook unevenly, a mistake I've made. Pre-cooking slightly helps.

→ How do I prevent undercooked potatoes in my Cheesy Ground Beef & Potato Casserole?

The key is thin, even slices and covering the skillet tightly with foil during baking. Don't remove the foil too early, as I once did, making them hard. Ensure they are fork-tender before uncovering for browning.

→ Can I make this Cheesy Ground Beef & Potato Casserole ahead of time or freeze it?

Yes, you can prep the beef mixture and slice potatoes up to two days ahead, storing separately. For freezing, I recommend baking first, then cooling and freezing individual portions. Reheat covered to maintain moisture.

→ How long can I store leftover One-Pan Cheesy Ground Beef & Potato Casserole in the fridge?

Leftovers store well for 3-4 days in an airtight container in the refrigerator. Make sure it cools completely before storing; leaving it out too long, like I did once, can lead to spoilage.

→ Can I make this comforting Cheesy Beef & Potato Casserole gluten-free?

Absolutely! Simply substitute the all-purpose flour with a gluten-free all-purpose flour blend or cornstarch (use half the amount) to thicken the sauce. Ensure your beef broth is also gluten-free for a truly compliant dish.