Cheesy Ground Beef & Potato Casserole: The Ultimate One-Pan Comfort Food
There’s something profoundly comforting about a casserole bubbling away in the oven, filling your kitchen with the most wonderful aromas. When life gets busy and you’re craving that homestyle goodness without spending hours in the kitchen, this Cheesy Ground Beef & Potato Casserole becomes your new best friend. It’s the kind of meal that feels like a warm hug after a long day, yet it’s surprisingly simple to pull together.
What makes this dish so special is its beautiful simplicity. We’re talking about ingredients that are probably already in your pantry and fridge, combined in a way that creates magic. Potatoes, ground beef, cheese, and a few pantry staples come together to form a meal that satisfies both your hunger and your soul. It’s the perfect solution for those evenings when you want something delicious but don’t have the energy for complicated cooking.

Why This Ground Beef Potato Casserole Recipe Will Become Your Go-To
There are countless casserole recipes out there, but this one stands out for several reasons. First, it uses everyday ingredients you likely have on hand. No specialty stores or hard-to-find items required. Second, it’s a complete meal in one dish protein from the beef, carbs from the potatoes, and vegetables all baked together. Third, the cleanup is minimal since we’re using just one skillet and one casserole dish.
The secret to this casserole’s success lies in the layering of flavors. The potatoes form a hearty base, the ground beef adds savory depth, the onion and garlic provide aromatic notes, and the cheese brings everything together with its creamy, melty goodness. The sauce mixture, made with cream of mushroom soup, milk, and sour cream, creates a rich, velvety texture that permeates every bite.
Ingredients That Make This Dish Special
Let’s talk about the stars of this show. Russet potatoes are perfect for casseroles because they hold their shape while becoming wonderfully tender. When peeled and diced, they create the perfect foundation that absorbs all the delicious flavors from the other ingredients. The lean ground beef provides protein and that hearty, satisfying quality we all love in comfort food.
The aromatic base of onion and garlic might seem simple, but they’re essential for building depth of flavor. As they cook with the beef, they release their natural sweetness and savory notes that form the backbone of this dish. The frozen mixed vegetables add color, texture, and nutrients, making this a well-rounded meal.
Now for the sauce ingredients this is where the magic happens. The cream of mushroom soup creates a creamy base without requiring you to make a roux from scratch. Combined with milk and sour cream, it becomes luxuriously smooth. The Worcestershire sauce adds a subtle umami kick, while Italian seasoning brings herbaceous notes that complement the other flavors beautifully.
And of course, we can’t forget the cheese. Using cheddar cheese both in the sauce and as a topping creates layers of cheesy goodness. The cheese in the sauce melts into the mixture, while the topping becomes golden and bubbly, creating that perfect cheesy crust we all dream about.
Step-by-Step Instructions for Perfect Results
Preheating your oven to 400F is the first crucial step. This high temperature ensures the potatoes cook through properly and the top gets that beautiful golden-brown color. Placing the rack in the middle position guarantees even heating throughout the cooking process.
Starting with the potatoes in the casserole dish might seem counterintuitive, but it works beautifully. As they bake, they’ll soften and absorb the flavors from the beef mixture and sauce. The key is to dice them evenly so they cook at the same rate.
When browning the ground beef and onions, take your time. Proper browning creates complex flavors through the Maillard reaction. Breaking up the meat as it cooks ensures even browning and prevents large clumps. Draining excess fat is important for preventing a greasy final product.
Adding the garlic and frozen vegetables towards the end of the beef cooking process is strategic. Garlic can burn easily if added too early, while the frozen vegetables just need enough time to thaw and warm through. Seasoning with salt and pepper at this stage builds flavor throughout the dish.
Creating the sauce mixture is where you’ll see everything come together. Whisking the ingredients thoroughly ensures a smooth, homogenous sauce that will coat every component evenly. Using half the cheese in the sauce means cheesy goodness from the first bite to the last.
Pouring the sauce over the beef and potatoes, then stirring to combine, is crucial for flavor distribution. Making sure everything is in an even layer guarantees consistent cooking. The initial covered baking time allows the potatoes to steam and become tender without the top drying out.
Removing the foil and adding the remaining cheese creates that beautiful, melty topping we all love. The final uncovered baking time allows excess moisture to evaporate and the cheese to achieve that perfect golden color. Letting the casserole rest before serving is not just a suggestion it’s essential. This resting time allows the flavors to meld together and the casserole to set up, making it easier to serve neat portions.
Tips and Variations for Your Perfect Casserole
One of the beautiful things about this recipe is its adaptability. If you don’t have russet potatoes, Yukon Gold potatoes work wonderfully too they have a creamier texture that some people prefer. For the ground beef, I recommend lean beef to minimize greasiness, but you can use whatever fat content you prefer.
The frozen mixed vegetables can be customized based on what you have available. Corn, peas, carrots, and green beans all work beautifully. If you’re using fresh vegetables instead of frozen, you might need to adjust the cooking time slightly.
When it comes to cheese, feel free to experiment. While cheddar is classic, Monterey Jack, Colby, or even a pepper jack would add wonderful flavor variations. If you want to make this dish extra special, try using a blend of cheeses for more complex flavor profiles.
For those who want to add extra dimensions of flavor, consider these variations. Add a dash of hot sauce or red pepper flakes for some heat. Mix in some bacon bits for smokiness. Stir in some cream cheese for extra creaminess. The possibilities are endless, which is what makes this recipe so versatile.
Making It Your Own Family Tradition
This ground beef and potato casserole has that magical quality of tasting even better as leftovers. The flavors continue to develop overnight, making it perfect for meal prepping or enjoying the next day. It reheats beautifully in the oven or microwave.
One of the things I love most about this recipe is how it brings people together. There’s something about a bubbling casserole coming out of the oven that creates anticipation and comfort. It’s the kind of meal that sparks conversations around the dinner table and creates lasting memories.
Whether you’re cooking for a family dinner, hosting friends, or simply treating yourself to a comforting meal, this casserole delivers every time. It’s proof that great food doesn’t have to be complicated. Sometimes, the simplest combinations, prepared with care, create the most satisfying results.
So the next time you’re wondering what to make for dinner, remember this beautiful, comforting casserole. It’s waiting to become a new favorite in your recipe collection, ready to provide warmth, nourishment, and that special feeling that only homestyle cooking can deliver.

Cheesy Ground Beef & Potato Casserole
Ingredients
Equipment
Method
- Preheat your oven to 400F and move the rack to the middle position.
- Add the potatoes to a greased 9×13 casserole dish.
- Add the beef and onions to a skillet and cook, breaking the meat up with your spoon as you go along, until browned (about 8-10 minutes). Drain excess fat if needed.
- To the skillet, add in the garlic and frozen mixed vegetables and cook for another 2-3 minutes, stirring often. Season with some salt & pepper and transfer the mixture to the casserole dish.
- In a medium prep bowl, mix the cream of mushroom soup, milk, sour cream, Worcestershire sauce, Italian seasoning, and half of the cheddar cheese together.
- Pour the sauce mixture over top of the beef and potatoes, then stir and arrange it in an even layer.
- Cover the casserole tightly with foil and bake for 45 minutes.
- Take the foil off, sprinkle the remaining cheese on top, and bake uncovered for another 10-15 minutes or until the cheese has melted and the potatoes are tender.
- Let it sit for 5-10 minutes prior to serving, then season with extra salt & pepper as needed.
