Cheesy Ground Beef & Potato Casserole with Creamy Garlic Sauce
Cheesy Ground Beef & Potato Casserole with Creamy Garlic Sauce is a hearty, comforting family dinner made with layers of tender Yukon Gold potatoes, savoury seasoned ground beef, and a rich creamy garlic sauce. Everything is finished with cheddar and mozzarella for a golden, bubbling cheese topping.
It’s the kind of cozy casserole that’s easy enough for a weeknight but satisfying enough for a Sunday family dinner. The creamy sauce seeps between the potato layers while the seasoned beef adds plenty of savoury flavour to every bite.
Ingredients
For the Beef & Potato Casserole
- 1 lb (450 g) lean ground beef
- 2 lb (900 g) Yukon Gold potatoes, thinly sliced
- 1 small yellow onion, finely diced
- 3 garlic cloves, minced
- 1 tbsp olive oil
- 1 tsp smoked paprika
- 1 tsp dried oregano
- 1/2 tsp onion powder
- 1/2 tsp salt
- 1/4 tsp black pepper
- 1 cup (120 g) shredded cheddar cheese
- 1/2 cup (60 g) shredded mozzarella cheese
For the Creamy Garlic Sauce
- 1 cup (240 ml) heavy cream
- 1/2 cup (120 ml) chicken or beef broth
- 3 tbsp cream cheese
- 1/2 cup (50 g) grated Parmesan cheese
- 2 garlic cloves, minced
- 1/2 tsp dried thyme
- 1/4 tsp salt
- 1/4 tsp black pepper
For Garnishing
- 2 tbsp fresh parsley, chopped
- 1 tbsp grated Parmesan
- 1/4 tsp red pepper flakes, optional
How to Make It
1. Preheat the Oven
Preheat your oven to 375°F (190°C). Lightly grease a 9 × 13-inch (23 × 33 cm) baking dish and set it aside.
2. Prepare the Potatoes
Peel the potatoes if desired and slice them very thinly and evenly. Pat the slices dry with paper towels to remove excess moisture. Evenly sliced potatoes will cook more consistently throughout the casserole.
3. Brown the Beef
Heat the olive oil in a large skillet over medium-high heat. Add the diced onion and cook for 3–4 minutes, stirring occasionally, until softened. Add the ground beef and cook for 6–8 minutes, breaking it apart with a spoon, until browned and cooked through.
4. Season the Beef
Add the minced garlic, smoked paprika, dried oregano, onion powder, salt, and black pepper. Stir and cook for another 1–2 minutes, until the garlic is fragrant and the seasonings are evenly distributed. Remove the skillet from the heat.
5. Make the Creamy Garlic Sauce
Place a saucepan over medium heat and add the heavy cream, broth, cream cheese, minced garlic, dried thyme, salt, and black pepper. Stir gently until the cream cheese has completely melted and the sauce is smooth.
Remove the saucepan from the heat and stir in the grated Parmesan until incorporated. The sauce should be creamy and smooth.
6. Assemble the First Layer
Arrange a layer of thinly sliced potatoes across the bottom of the prepared baking dish, slightly overlapping the slices. Spoon half of the seasoned ground beef evenly over the potatoes.
7. Continue Layering
Add another layer of sliced potatoes followed by the remaining seasoned ground beef. Finish with a final layer of potatoes, arranging them evenly across the surface.
8. Add the Creamy Sauce
Pour the creamy garlic sauce evenly over the casserole. Gently tilt the baking dish if necessary to help the sauce flow between the potato layers. Make sure the surface is evenly covered.
9. Add the Cheese
Sprinkle the shredded cheddar and mozzarella evenly over the top. The combination creates a rich, creamy center with a beautifully golden and bubbly finish.
10. Cover and Bake
Cover the baking dish tightly with aluminum foil. Bake for 45 minutes. Keeping the casserole covered during this stage helps the potatoes steam and become tender while keeping the sauce creamy.
11. Finish Baking
Remove the foil and return the casserole to the oven. Bake for another 20–25 minutes, until the potatoes are completely tender and the cheese is melted, bubbling, and golden brown.
12. Rest the Casserole
Remove the casserole from the oven and let it rest for 10–15 minutes before slicing. This allows the creamy sauce to settle and makes the layers easier to serve.
13. Garnish and Serve
Sprinkle the casserole with fresh parsley, grated Parmesan, and optional red pepper flakes. Serve warm while the cheese is still melted and the creamy garlic sauce is rich and silky.
Why This Recipe Works
This casserole brings together everything you want in a comforting baked dinner. Thinly sliced Yukon Gold potatoes become tender and creamy as they bake, while the seasoned ground beef adds a hearty savoury layer.
The creamy garlic sauce adds richness throughout the casserole, while cheddar and mozzarella create a golden, cheesy topping. Parmesan adds another layer of savoury flavour and helps give the sauce a deliciously rich finish.
Smoked paprika, oregano, garlic, and thyme keep the flavours balanced, while fresh parsley adds a bright finish to the otherwise cozy and indulgent dish.
Tips for the Best Ground Beef & Potato Casserole
- Slice the potatoes evenly: Thin, uniform slices cook more consistently and help create tender layers.
- Don’t skip covering the casserole: The foil traps steam and helps the potatoes become tender before the cheese is browned.
- Brown the beef well: Properly browning the beef develops deeper savoury flavour.
- Don’t boil the cream sauce: Keep the heat moderate and stir gently so the sauce stays smooth.
- Use freshly grated Parmesan: It melts more smoothly into the creamy sauce.
- Let it rest: A 10–15 minute rest makes the casserole easier to portion and allows the sauce to settle.
- Watch the cheese: Once uncovered, keep an eye on the casserole so the topping becomes golden without burning.
Serving Suggestions
This casserole is hearty enough to serve as a complete family dinner. Pair it with a simple green salad, steamed broccoli, roasted vegetables, or crisp cucumber salad for a fresh contrast.
For an especially cozy meal, serve it with crusty bread to soak up any extra creamy garlic sauce. A spoonful of fresh herbs on top also adds a nice burst of freshness.

Frequently Asked Questions
Can I use a different type of potato?
Yes. Yukon Gold potatoes are especially good because they become creamy and tender while holding their shape. Russet potatoes can also be used, although they may produce a slightly softer, starchier texture.
Can I prepare this casserole ahead of time?
Yes. You can assemble the casserole ahead of time, cover it, and refrigerate it until you’re ready to bake. If baking directly from the refrigerator, allow some additional cooking time and make sure the center is completely hot and the potatoes are tender.
Can I substitute ground beef?
Absolutely. Ground turkey, ground chicken, or ground pork can be substituted. Keep in mind that leaner meats may produce a slightly lighter result.
Can I add vegetables?
Yes. Mushrooms, spinach, bell peppers, peas, or finely chopped broccoli can be added. Cook vegetables that release a lot of moisture before incorporating them so the casserole doesn’t become watery.
How do I know when the potatoes are fully cooked?
Insert a thin knife or fork into the center of the casserole. It should slide easily through the potato layers without resistance. If the potatoes are still firm, cover the dish again and continue baking until tender.
How should I store leftovers?
Allow the casserole to cool, then cover and refrigerate leftovers. Reheat individual portions in the microwave or warm larger portions in the oven until heated through.
Nutrition & Timing
| Details | Amount |
|---|---|
| Prep Time | 20 minutes |
| Cook Time | 1 hour 10 minutes |
| Total Time | 1 hour 30 minutes |
| Servings | 6 |
| Calories | Approx. 590 per serving |
| Protein | Approx. 32g per serving |
Final Thoughts
Cheesy Ground Beef & Potato Casserole with Creamy Garlic Sauce is the ultimate comfort-food dinner when you’re craving something warm, filling, and wonderfully cheesy. The tender potato layers, seasoned ground beef, creamy garlic sauce, and golden cheddar-mozzarella topping make every serving rich and satisfying.
It’s simple enough for a weeknight meal, yet hearty and comforting enough to become a family favourite. Let it rest before serving, add plenty of fresh parsley, and enjoy it straight from the oven while the cheese is bubbling and golden.
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Cheesy Ground Beef & Potato Casserole with Creamy Garlic Sauce
- Total Time: 1 hour 30 minutes
Description
A hearty, comforting family casserole made with tender Yukon Gold potatoes, savory seasoned ground beef, rich creamy garlic sauce, and a golden bubbling cheddar-mozzarella topping. Perfect for an easy weeknight dinner or cozy Sunday family meal.
Ingredients
For the Beef & Potato Casserole
1 lb (450 g) lean ground beef
2 lb (900 g) Yukon Gold potatoes, thinly sliced
1 small yellow onion, finely diced
3 garlic cloves, minced
1 tbsp olive oil
1 tsp smoked paprika
1 tsp dried oregano
1/2 tsp onion powder
1/2 tsp salt
1/4 tsp black pepper
1 cup (120 g) shredded cheddar cheese
1/2 cup (60 g) shredded mozzarella cheese
For the Creamy Garlic Sauce
1 cup (240 ml) heavy cream
1/2 cup (120 ml) chicken or beef broth
3 tbsp cream cheese
1/2 cup (50 g) grated Parmesan cheese
2 garlic cloves, minced
1/2 tsp dried thyme
1/4 tsp salt
1/4 tsp black pepper
For Garnishing
2 tbsp fresh parsley, chopped
1 tbsp grated Parmesan
1/4 tsp red pepper flakes, optional
Instructions
1. Preheat the oven to 375°F (190°C). Lightly grease a 9 × 13-inch (23 × 33 cm) baking dish and set aside.
2. Peel the potatoes if desired and slice them very thinly and evenly. Pat the slices dry with paper towels to remove excess moisture.
3. Heat the olive oil in a large skillet over medium-high heat. Add the diced onion and cook for 3–4 minutes until softened.
4. Add the ground beef and cook for 6–8 minutes, breaking it apart with a spoon, until browned and cooked through.
5. Add the minced garlic, smoked paprika, dried oregano, onion powder, salt, and black pepper. Stir and cook for another 1–2 minutes until fragrant. Remove from the heat.
6. Make the creamy garlic sauce by adding the heavy cream, broth, cream cheese, minced garlic, dried thyme, salt, and black pepper to a saucepan over medium heat.
7. Stir gently until the cream cheese has completely melted and the sauce is smooth. Remove from the heat and stir in the grated Parmesan until incorporated.
8. Arrange a layer of thinly sliced potatoes across the bottom of the prepared baking dish, slightly overlapping the slices.
9. Spoon half of the seasoned ground beef evenly over the potatoes.
10. Add another layer of sliced potatoes followed by the remaining seasoned ground beef.
11. Finish with a final layer of potatoes, arranging them evenly across the surface.
12. Pour the creamy garlic sauce evenly over the casserole. Gently tilt the baking dish if needed to help the sauce flow between the potato layers.
13. Sprinkle the shredded cheddar and mozzarella evenly over the top.
14. Cover the baking dish tightly with aluminum foil and bake for 45 minutes.
15. Remove the foil and return the casserole to the oven. Bake for another 20–25 minutes, until the potatoes are completely tender and the cheese is melted, bubbling, and golden brown.
16. Remove the casserole from the oven and let it rest for 10–15 minutes so the creamy sauce can settle and the layers become easier to serve.
17. Garnish with fresh parsley, grated Parmesan, and optional red pepper flakes. Serve warm while the cheese is melted and the garlic sauce is rich and silky.
Notes
Slice the potatoes thinly and evenly so they cook consistently throughout the casserole. Pat the potato slices dry before assembling to remove excess moisture. Don’t skip covering the casserole during the first stage of baking. The foil traps steam and helps the potatoes become tender. Brown the beef well to develop deeper savory flavor. Keep the cream sauce at moderate heat and avoid boiling it so it stays smooth. Freshly grated Parmesan melts more smoothly into the creamy sauce. Let the casserole rest for 10–15 minutes before slicing so the sauce can settle and the layers hold together better. Watch the cheese carefully during the final uncovered baking stage so it becomes golden without burning. Yukon Gold potatoes work especially well because they become creamy and tender while holding their shape. Russet potatoes can also be used for a softer, starchier texture. Ground turkey, ground chicken, or ground pork can be substituted for ground beef. Mushrooms, spinach, bell peppers, peas, or finely chopped broccoli can be added. Cook vegetables that release significant moisture before adding them. The casserole can be assembled ahead of time, covered, and refrigerated until ready to bake. If baking directly from the refrigerator, allow additional cooking time and make sure the center is completely hot and the potatoes are tender. Serve with a simple green salad, steamed broccoli, roasted vegetables, or cucumber salad for a fresh contrast. Crusty bread is excellent for soaking up the creamy garlic sauce. Store cooled leftovers covered in the refrigerator and reheat individual portions in the microwave or larger portions in the oven until heated through.
- Prep Time: 20 minutes
- Cook Time: 1 hour 10 minutes
- Category: Dinner
- Method: Baking
- Cuisine: American
