This mashed potato casserole with ground beef made with creamy potatoes and savory seasoned beef is so much better than a basic weeknight dinner!
There’s something very comforting about turning simple, everyday ingredients into a cozy, baked dish that feels like a warm hug. Like this mashed potato and ground beef casserole!
Both kids and adults are guaranteed to love the combo of creamy golden mashed potatoes, rich savory beef filling, and a hint of melted cheese on top. Bake a batch tonight!
Ingredients in Mashed Potato Casserole with Ground Beef
A small group of familiar ingredients creates a comforting casserole that feels rich and satisfying.
How to Make Mashed Potato Casserole with Ground Beef
Preparing this casserole involves building two simple layers before baking everything together.
1. Prepare the potatoes
Begin by peeling the potatoes and cutting them into medium sized pieces. Place them in a pot filled with salted water and bring to a boil until the potatoes become tender.
2. Mash the potatoes
Drain the cooked potatoes and return them to the pot. Add butter, milk, salt, and black pepper, then mash until the mixture becomes smooth and creamy.
3. Preheat the oven
Set the oven to 375°F and lightly grease a baking dish so the casserole releases easily after baking.
4. Cook the onion and garlic
Heat olive oil in a large skillet over medium heat. Add the chopped onion and cook until it becomes soft and fragrant, then stir in the minced garlic.
5. Brown the ground beef
Add ground beef to the skillet with the onions. Break it into small pieces while cooking until the meat becomes browned and fully cooked.
6. Season the beef mixture
Sprinkle salt and black pepper over the beef mixture. Stir everything together so the seasoning spreads evenly throughout the filling.
7. Layer the beef in the dish
Spread the cooked ground beef evenly across the bottom of the prepared baking dish. This forms the savory base of the casserole.
8. Add the mashed potatoes
Spoon the mashed potatoes over the beef layer and spread them gently with a spatula so the surface becomes smooth.
9. Sprinkle the cheese
Scatter shredded cheddar cheese across the top of the mashed potatoes. The cheese melts and forms a delicious golden layer during baking.
10. Bake the casserole
Place the dish in the oven and bake until the cheese melts and the top becomes lightly golden. Let the casserole rest for a few minutes before serving.
How to Serve Mashed Potato Casserole with Ground Beef
Serve this casserole while it stays warm and fresh from the oven. The creamy mashed potatoes and savory beef filling taste best when the cheese on top still feels melted and soft.
Large spoonfuls work well for serving because the layers stay together beautifully. Each portion should include both the beef base and the potato topping.
A simple side salad pairs nicely with the casserole and adds a fresh contrast to the rich dish. Crisp greens with a light dressing balance the flavors well.
Steamed vegetables such as carrots or green beans also work well alongside the casserole. Their brightness adds color and freshness to the plate.
Recipe Tips
- Choose starchy potatoes such as russet potatoes for smoother mashed potatoes.
- Mash the potatoes while they are still warm so they blend easily with butter and milk.
- Cook the ground beef fully and drain excess grease to keep the casserole from becoming too heavy.
- Spread the mashed potatoes gently across the beef layer so the layers stay even.
- Add extra cheese on top if a richer golden crust is desired.
- Let the casserole rest briefly after baking so the layers settle before serving.
- Store leftovers in the refrigerator and reheat gently to maintain the creamy texture.
Mashed Potato Casserole with Ground Beef
Course: DinnerCuisine: AmericanDifficulty: Easy6
servings20
minutes35
minutesIngredients
1 pound ground beef
4 medium potatoes peeled and chopped
2 tablespoons butter
½ cup milk
1 small onion chopped
2 garlic cloves minced
1 cup shredded cheddar cheese
1 tablespoon olive oil
Salt and black pepper to taste
Directions
- Prepare the potatoes:
Begin by peeling the potatoes and cutting them into medium sized pieces. Place them in a pot filled with salted water and bring to a boil until the potatoes become tender. - Mash the potatoes:
Drain the cooked potatoes and return them to the pot. Add butter, milk, salt, and black pepper, then mash until the mixture becomes smooth and creamy. - Preheat the oven:
Set the oven to 375°F and lightly grease a baking dish so the casserole releases easily after baking. - Cook the onion and garlic:
Heat olive oil in a large skillet over medium heat. Add the chopped onion and cook until it becomes soft and fragrant, then stir in the minced garlic. - Brown the ground beef:
Add ground beef to the skillet with the onions. Break it into small pieces while cooking until the meat becomes browned and fully cooked. - Season the beef mixture:
Sprinkle salt and black pepper over the beef mixture. Stir everything together so the seasoning spreads evenly throughout the filling. - Layer the beef in the dish:
Spread the cooked ground beef evenly across the bottom of the prepared baking dish. This forms the savory base of the casserole. - Add the mashed potatoes:
Spoon the mashed potatoes over the beef layer and spread them gently with a spatula so the surface becomes smooth. - Sprinkle the cheese:
Scatter shredded cheddar cheese across the top of the mashed potatoes. The cheese melts and forms a delicious golden layer during baking. - Bake the casserole:
Place the dish in the oven and bake until the cheese melts and the top becomes lightly golden. Let the casserole rest for a few minutes before serving.
