When the rush of a busy day wraps around me like a heavy blanket, I often find solace in the kitchen, crafting a dish that feels like a warm hug. Enter my One-Pot Ground Beef and Spinach Potato Casserole—a comforting revelation that has become my secret weapon for weeknight dinners. Imagine the satisfying aroma of savory beef mingling with tender layers of unpeeled potatoes and vibrant spinach, all enveloped in a creamy Swiss cheese sauce.

No peeling potatoes? Yes, please! This casserole not only saves on prep time but also packs more nutrients into each hearty bite. Whether you're cooking for a hungry family or prepping meals for busy days ahead, this dish effortlessly combines flavor and convenience. With its rich taste and satisfying textures, it’s sure to be a crowd-pleaser that even the pickiest eaters will love. Grab your apron, and let’s turn simple ingredients into a delightful dinner that brings everyone to the table!

Why is Potato and Ground Beef Casserole special?

Irresistibly Easy, this dish requires minimal effort while delivering maximum flavor, making it perfect for busy weeknights. Nutritious Spinach adds a pop of color and a health boost without sacrificing taste. One-Pot Wonder, it simplifies cleanup, freeing up more time for you. Crowd-Pleasing Delight, even picky eaters will be begging for seconds! Try pairing it with a fresh salad for a well-rounded meal, or prep it ahead for busy days; you’ll marvel at how quickly it's devoured.

Potato and Ground Beef Casserole Ingredients

For the Casserole

Potatoes (8 small-medium) – Use red or white; unpeeled for maximum nutrients.
Unsalted Butter (5 tbsp) – Drizzled between layers to add richness and moisture.
Onions (2 small, chopped) – Sauté with beef for a flavorful base.
Garlic (2 cloves) – Provides an aromatic boost when mixed in the filling.
Extra Lean Ground Beef (1½ lbs) – Browned for added flavor and texture.
Frozen Spinach (2 - 10 oz packages, defrosted) – A nutrient boost; squeeze out excess moisture to prevent sogginess.
Cottage Cheese (1 cup) – Adds creaminess and protein; can be substituted with ricotta for a different texture.
Swiss Cheese (2 cups, grated) – Adds cheesy flavor and creamy texture; feel free to mix with mozzarella or cheddar.
Large Eggs (2) – Binds the filling ingredients together for perfect cohesion.
Salt (1 tsp) – Enhances the overall flavor of the casserole.
Pepper (½ tsp) – Adds a touch of mild heat to the dish.
Chives or Green Onions (for garnish) – Freshness and color for a beautiful presentation.

Enjoy the ease and flavor of this Potato and Ground Beef Casserole (with spinach) that will surely become a family favorite!

How to Make Potato and Ground Beef Casserole

Preheat your oven to 350°F (176°C) and grease a 9"x11" casserole dish to ensure nothing sticks and for easy cleanup.
Brown the beef by adding the ground beef and chopped onions to a skillet over medium heat. Cook until the beef is no longer pink and the onions are translucent; then drain any excess fat and set aside.
Microwave the potatoes for about 8 minutes. Slice them into ¼-inch rounds and microwave in batches until fork-tender for perfectly cooked layers.
Combine the filling in a large bowl by mixing half of the Swiss cheese with the defrosted spinach, cottage cheese, minced garlic, salt, and eggs. Add in the browned ground beef and mix thoroughly.
Layer the casserole by placing half of the potato slices at the bottom of the greased dish. Drizzle with some butter, and spread the beef and cheese mixture evenly over the potatoes.
Top with remaining potatoes and drizzle the rest of the butter on top. Sprinkle any leftover Swiss cheese to create a golden, cheesy crust.
Bake the casserole in your preheated oven for 40-50 minutes, or until the potatoes are soft and the casserole is bubbling. Let it cool for 5 minutes to set before slicing.
Garnish with chives or green onions for an added burst of flavor and a colorful finish before diving in!

Optional: Serve with a side of fresh salad for a balanced meal.

Exact quantities are listed in the recipe card below.

Storage Tips for Potato and Ground Beef Casserole

Fridge: Store the casserole in an airtight container for up to 4 days. Reheat individual servings in the microwave or warm portions in the oven for best results.
Freezer: Wrap tightly in plastic wrap and aluminum foil or use a freezer-safe container to freeze for up to 3 months. Thaw in the fridge overnight before reheating.
Reheating: Reheat in the oven at 350°F (175°C) for about 20-30 minutes, or until heated through. For quicker options, use a microwave, ensuring it’s evenly heated.
Make-Ahead: You can assemble the Potato and Ground Beef Casserole a couple of days in advance before baking. Just cover and refrigerate until you’re ready to bake!

Potato and Ground Beef Casserole Variations

Feel free to get creative with this delicious casserole, tailoring it to your family’s tastes and dietary needs!

Ground Meat Swap: Use ground turkey or chicken for a leaner option that still packs a protein punch.
Cheese Choices: Experiment by swapping Swiss cheese with sharp cheddar or Monterey Jack for a unique flavor twist.
Veggie Boost: Add chopped bell peppers or zucchini to the meat mixture for extra nutrients and colorful fun.
Spice It Up: Sprinkle in red pepper flakes for a little heat, or incorporate diced jalapeños for a vibrant kick!
Herb Infusion: Mix in fresh herbs such as thyme or parsley to brighten the casserole and enhance its overall aroma.
Creaminess Upgrade: Swap cottage cheese for ricotta for a richer, creamier texture that will delight your taste buds.
Grain Add-In: Layer cooked quinoa or rice between the potato slices for added texture and a heartier meal.
Skillet Option: Instead of baking, you can cook this casserole on the stovetop in a large skillet, layering and cooking until all components are heated through.

With these variations, embrace the flexibility of cooking and make this casserole uniquely your own!

Make Ahead Options

These Potato and Ground Beef Casserole (with spinach) options are perfect for meal prep enthusiasts! You can prepare the entire casserole up to 24 hours in advance by assembling it in your greased baking dish, covering it tightly with plastic wrap, and refrigerating it. For added convenience, the filling can be mixed and stored in the fridge for up to 3 days before layering. When you’re ready to serve dinner, simply remove the casserole from the refrigerator, let it sit at room temperature for about 30 minutes, and then bake as directed. This method ensures your casserole is just as delicious with optimal texture and flavor, saving you essential time during busy weeknights!

What to Serve with Potato and Ground Beef Casserole (with spinach)?

Prepare to indulge in a delightful dining experience that complements the heartiness of your casserole, creating a meal that warms the soul.

Crisp Green Salad: This refreshing addition balances out the savory casserole. Toss fresh greens with a zesty lemon vinaigrette for a bright contrast.
Garlic Bread: Warm, crusty garlic bread offers a satisfying crunch. Perfect for soaking up the creamy cheese sauce, it brings an extra layer of warmth to your meal.
Steamed Broccoli: Tender, vibrant broccoli adds a splash of color and nutrition to your plate. Its mild flavor pairs beautifully with the richer casserole.
Roasted Carrots: Sweet, caramelized roasted carrots provide a lovely textural contrast. Their natural sweetness complements the savory beef and cheese, making each bite pop.
Savory Cornbread: Serve alongside this casserole for a comforting touch. The slightly sweet bread enhances the savory flavors and adds a delightful texture.
Chardonnay: A chilled glass of Chardonnay can elevate the meal. Its crisp acidity and fruity notes pair well with the richness of the casserole, enhancing every bite.
Chocolate Chip Cookies: For dessert, warm chocolate chip cookies bring a nostalgic touch. Their gooey goodness is the perfect way to end your meal on a sweet note.

Embrace these pairings to create a memorable culinary experience that will have your family and friends asking for seconds!

Expert Tips for Potato and Ground Beef Casserole

Uniform Slices: Ensure potato slices are thin and uniform for even cooking; this prevents some pieces from being undercooked while others are too soft.
Pre-Cook Potatoes: Microwave the potato slices beforehand to guarantee they soften properly during baking; otherwise, plan for a longer baking time.
Drain Spinach: Squeeze out excess moisture from the spinach to avoid a soggy casserole; this keeps the dish perfectly creamy and avoids water pooling.
Seasoning Variations: Experiment with layering additional herbs and spices, like Italian seasoning or paprika, for a deeper flavor profile in your Potato and Ground Beef Casserole.
Rest Before Slicing: Let the casserole cool for a few minutes before slicing; this helps maintain its shape and ensures each serving holds together beautifully.

Potato and Ground Beef Casserole (with spinach) Recipe FAQs

What kind of potatoes should I use for this casserole?
Absolutely! I recommend using red or white potatoes since they hold their shape well and offer wonderful texture without peeling. Choosing small to medium-sized potatoes allows you to create even slices that cook perfectly in the oven.

How do I store leftovers from the Potato and Ground Beef Casserole?
You can store the casserole in an airtight container in the refrigerator for up to 4 days. When you're ready to reheat, microwaving individual servings is quick and easy. Alternatively, if you prefer using the oven, warm portions at about 350°F (175°C) for 20-30 minutes, ensuring they heat evenly throughout.

Can I freeze the potato casserole?
Yes, indeed! To freeze your Potato and Ground Beef Casserole, wrap it tightly in plastic wrap, and then cover it with aluminum foil or place it in a freezer-safe container. It’s best used within 3 months. When you're ready to enjoy it again, simply thaw it in the fridge overnight and reheat in the oven at 350°F (175°C) for about 30-40 minutes until fully heated through.

What should I do if my casserole is too watery?
If your casserole turns out watery, it might be due to excess moisture in the spinach or if the potatoes were not adequately drained before assembling. To prevent this, always squeeze out excess moisture from thawed spinach before adding it to the mix. Additionally, if you suspect your casserole may be too watery, layering it with breadcrumbs or simply cooking it a bit longer uncovered can help absorb some of that liquid.

Are there any dietary considerations for this casserole?
While this dish is family-friendly, if you have pets, keep in mind that certain ingredients like onions and garlic can be harmful to them. For allergies, make sure to substitute any ingredients accordingly; for instance, using lactose-free cheese if you have a dairy intolerance or opting for ground turkey if red meat isn’t preferred. Always check labels for any other allergens that might apply to specific individuals in your household.

How can I add more vegetables to this recipe?
Very! You can enhance the nutritional value and flavor of your casserole by incorporating other vegetables. Consider adding sautéed bell peppers, zucchini, or even grated carrots into the meat mixture. For best results, cook them briefly before mixing to ensure they soften and meld well with the casserole's flavors.