Ground Beef and Potato Casserole

I first made ground beef and potato casserole during my second year of college, in a dorm kitchen with exactly one baking dish, a stove with two working burners, and a budget that could only be described as tragic. I needed something that would feed me for multiple days on about twelve dollars total, and this casserole became my answer.

I remember calling my mom halfway through and asking her, panicked, whether potatoes needed to be fully cooked before going in the oven with everything else. She laughed at me for a solid thirty seconds before actually answering.

Over a decade later, ground beef and potato casserole is still one of my most-made dinners, except now I use a slightly nicer baking dish and I no longer need to call my mom mid-recipe (usually). It’s cheap, it’s hearty, and it tastes like an actual hug after a long day.

Why You’ll Love This Recipe

• Budget-friendly — built around ground beef and potatoes, two of the most affordable staples out there.
• Feeds a crowd without requiring a ton of extra effort or ingredients.
• Great for leftovers — tastes just as good, if not better, the next day.
• Kid-friendly and picky-eater approved, since it’s cheesy, savory, and familiar.
• Freezer-friendly, so you can make a double batch and stash one for later.

Ingredients

For the Beef Layer

• 1 lb ground beef (80/20 works best for flavor)
• 1 small yellow onion, diced
• 2 garlic cloves, minced
• 1 teaspoon salt, divided
• ½ teaspoon black pepper
• 1 teaspoon smoked paprika
• ½ teaspoon dried thyme

For the Potato Layer

• 4 medium russet potatoes, thinly sliced (about ⅛-inch thick)
• 1 tablespoon olive oil
• ½ teaspoon salt
• ¼ teaspoon black pepper

For the Creamy Sauce

• 2 tablespoons butter
• 2 tablespoons all-purpose flour
• 1 ½ cups milk
• ½ cup sour cream
• 1 cup shredded cheddar cheese, plus 1 cup for topping
• ½ teaspoon garlic powder

Optional for Serving

• Fresh chives or parsley, chopped
• Extra sour cream on the side

Step-by-Step Instructions

1. Preheat your oven and prep your baking dish. (5 minutes) Preheat the oven to 375°F and grease a 9×13-inch baking dish so nothing sticks once it’s assembled.
2. Slice your potatoes thin and even. (10 minutes) Using a sharp knife or a mandoline if you’ve got one, slice the potatoes into thin, even rounds, about ⅛-inch thick. Even slices matter here; thick chunks won’t cook through in the same time as everything else.
3. Toss the potatoes with oil and seasoning. (2 minutes) In a large bowl, toss the sliced potatoes with olive oil, salt, and pepper until evenly coated. Set aside while you work on the beef.
4. Brown the ground beef. (7-8 minutes) In a large skillet over medium-high heat, cook the ground beef with the diced onion, breaking the meat apart with a wooden spoon as it cooks. Continue until the beef is fully browned and no longer pink, and the onion has softened.
5. Season the beef. (1 minute) Stir in the garlic, smoked paprika, thyme, ½ teaspoon of salt, and pepper, cooking for another 30 seconds until fragrant. Drain any excess grease from the pan before moving on.
6. Make the creamy sauce. (5 minutes) In a separate saucepan, melt the butter over medium heat, then whisk in the flour, stirring constantly for about a minute until it turns light golden. Slowly whisk in the milk, continuing to stir until the sauce thickens enough to coat the back of a spoon.
7. Finish the sauce. (2 minutes) Remove the sauce from heat and stir in the sour cream, 1 cup of cheddar cheese, and garlic powder, mixing until smooth and fully melted together.
8. Layer the casserole. (5 minutes) Arrange half the sliced potatoes in an even layer at the bottom of your prepared baking dish. Top with half the beef mixture, then pour half the creamy sauce over the top. Repeat with the remaining potatoes, beef, and sauce.
9. Cover and bake. (45 minutes) Cover the dish tightly with foil and bake for 45 minutes, until the potatoes feel tender when pierced with a fork through the foil.
10. Add cheese and finish baking. (10-15 minutes) Remove the foil, sprinkle the remaining cup of cheddar cheese over the top, and return to the oven uncovered until the cheese melts and turns golden and slightly bubbly around the edges.
11. Rest and serve. Let the casserole rest for about 10 minutes before slicing; this helps it hold together instead of falling apart into a delicious mess on the plate. Top with fresh chives or parsley if you’re using them.

Pro Tips & Tricks

Slice your potatoes thin and even. This is the single biggest thing that determines whether your casserole turns out perfectly tender or has a few stubbornly crunchy bites. A mandoline makes this so much easier if you’ve got one.

Drain the beef grease before layering. Skipping this step is how you end up with a greasy, watery casserole instead of a rich, creamy one. It only takes a minute and makes a real difference.

Let it rest before cutting. I know it’s tempting to dig in right away, but those 10 minutes let everything set up properly so your slices actually hold their shape instead of sliding apart.

Storage. Leftovers keep in an airtight container in the fridge for up to 4 days, and honestly, I think it tastes even better on day two once the flavors settle.

Make it ahead. You can assemble the entire casserole up to a day in advance, cover it, and refrigerate unbaked. Add about 10-15 extra minutes to the covered bake time since it’ll be starting cold.

Variations & Substitutions

For a lighter version, swap the ground beef for ground turkey, and use light sour cream in the sauce, both of which cut down on richness without sacrificing much flavor.

If you want it spicier, add a diced jalapeño to the beef while it browns, or mix a little cayenne into the seasoning for a subtle kick throughout.

Not a fan of russet potatoes? Yukon gold potatoes work great too, and they hold their shape a bit better, giving the casserole slightly more defined layers.

Serving Suggestions

This casserole is hearty enough to serve completely on its own, but a simple green salad or steamed green beans on the side rounds out the meal nicely.

It’s perfect for a Sunday family dinner, but it’s also one of my go-to dishes for potlucks since it travels well and reheats beautifully.

For a Cozy Weeknight

Pair it with a slice of crusty bread and call it a night; this casserole genuinely doesn’t need much else to feel like a complete, satisfying dinner.

FAQs

Can I use a different type of meat instead of ground beef?

Yes, ground turkey or ground chicken both work well, though the flavor will be slightly milder than with beef.

Can I make this casserole ahead of time?

Absolutely, assemble it up to a day in advance and refrigerate unbaked, then bake it fresh when you’re ready, adding a little extra time since it’s starting cold.

Can I freeze ground beef and potato casserole?

Yes, this casserole freezes well. Assemble it without baking, wrap tightly, and freeze for up to 3 months. Thaw overnight in the fridge before baking as directed.

My potatoes came out undercooked in the middle — what happened?

That usually means the slices were cut too thick. Try slicing them thinner next time, and make sure the dish is covered tightly with foil so the steam can properly cook them through.

Can I use pre-shredded cheese instead of a block?

You can, though freshly shredded cheese from a block melts more smoothly into the sauce. Pre-shredded cheese has anti-caking agents that can make the texture slightly grainy.

What if I don’t have sour cream on hand?

Plain Greek yogurt works as a substitute and gives a similar tangy creaminess, just use the same amount called for in the recipe.

Read More Recipes:

• Fall Harvest Sheet-Pan Dinner Recipe
• Creamy Chicken and Wild Rice Casserole
• One-Pan Maple Dijon Chicken and Vegetables
• Sausage and Sweet Potato Skillet
• Creamy Pumpkin Pasta with Parmesan

Final Thoughts

This ground beef and potato casserole has come a long way from my sad little dorm kitchen, and it’s still one of the most reliably comforting meals I know how to make.

If you give it a try, I’d love to hear how it turned out — let me know what you served it with, or if you’ve got your own broke-college-kid recipe that turned into a lifelong favorite. Happy cooking!