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Cheesy Ground Beef and Potato Casserole

Elina James
Print Recipe Pin Recipe
Prep Time 25 minutes
Cook Time 1 hour 10 minutes
Total Time 1 hour 35 minutes
Course Dinner
Cuisine American
Servings 6 servings
Calories 300 kcal

Ingredients
  

  • For the Beef Layer
  • 1 lb (450 g) ground beef
  • 1 medium onion, finely chopped
  • 2 cloves garlic, minced
  • 1 teaspoon salt
  • ½ teaspoon black pepper
  • 1 teaspoon paprika
  • 1 teaspoon dried thyme or Italian seasoning
  • For the Potato Layer
  • 5 medium russet potatoes, thinly sliced
  • 1 tablespoon butter (for greasing the dish)
  • Salt and pepper, to taste
  • For the Cheese Sauce
  • 3 tablespoons butter
  • 3 tablespoons all-purpose flour
  • 2 cups milk (preferably whole milk)
  • 1 cup shredded cheddar cheese
  • ½ cup shredded mozzarella cheese
  • ¼ teaspoon mustard powder (optional)
  • Salt and pepper, to taste
  • For Topping
  • ½ cup shredded cheddar cheese
  • 2 tablespoons chopped fresh parsley (for garnish)

Instructions
 

  • Step 1: Prepare the Ingredients : Peel and thinly slice the potatoes. Chop the onion and mince the garlic. Preheat the oven and grease your casserole dish.
  • Step 2: Cook the Ground Beef : In a large skillet, cook ground beef over medium heat until browned. Add onion and garlic; sauté until fragrant. Drain excess fat and season with spices.
  • Step 3: Make the Cheese Sauce : In a saucepan, melt butter and whisk in flour to form a roux. Gradually add milk while whisking until the sauce thickens. Stir in cheddar, mozzarella, mustard powder, salt, and pepper. Remove from heat once smooth.
  • Step 4: Assemble the Casserole: Layer half of the sliced potatoes in the dish. Add half the beef mixture, then pour half the cheese sauce. Repeat the layers until all ingredients are used.
  • Step 5: Bake the Casserole : Cover with foil and bake for 45 minutes. Remove foil and top with extra cheddar cheese. Bake for another 20–25 minutes until golden and bubbling.
  • Step 6: Rest and Serve : Allow the casserole to rest for 10 minutes before slicing. This helps it set and makes serving easier. Garnish with parsley and serve warm.