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Savory Beef and Potato Casserole

This hearty casserole combines leftover beef, ham, and potatoes into a comforting dish. Topped with crispy cheese, it’s perfect for family dinners or meal prep.

Ingredients

Scale
  • 2 1/2 lbs russet potatoes, peeled and cubed
  • 3 cups cubed beef
  • 8 oz shredded cheddar cheese
  • 3 tbsp unsalted butter
  • 1 medium onion, chopped
  • 3 tbsp all-purpose flour
  • 2 cups whole milk
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1/2 tsp ground mustard
  • 1/2 tsp garlic powder
  • 2 tbsp chives, chopped, for garnish

Instructions

  1. Preheat your oven to 375°F (190°C). This ensures that your casserole starts cooking right away when you assemble it.
  2. In a large pot, bring salted water to a boil. Add the cubed potatoes and cook for about 10-12 minutes, or until they are tender when pierced with a fork. Be careful not to overcook them, as they will continue to cook in the oven.
  3. While the potatoes are cooking, melt the unsalted butter in a large skillet over medium heat. Add the chopped onion and sauté for 4-5 minutes until they are translucent and fragrant, stirring occasionally to prevent burning.
  4. Once the onions are ready, sprinkle the flour over them, stirring constantly for about 1 minute. This step creates a roux that will thicken your casserole’s sauce.
  5. Gradually whisk in the whole milk, ensuring there are no lumps. Continue to cook for 5-7 minutes until the mixture thickens and bubbles gently. You’ll know it’s ready when it coats the back of a spoon.
  6. Stir in the salt, black pepper, ground mustard, and garlic powder. Mix well to combine all the flavors.
  7. Drain the cooked potatoes and fold them into the milk mixture, then gently add the cubed beef and half of the shredded cheddar cheese. Ensure everything is well-coated in the creamy sauce.
  8. Transfer the mixture into a greased 9×13-inch baking dish, spreading it evenly. Top with the remaining cheddar cheese.
  9. Bake in the preheated oven for 25-30 minutes, or until the top is golden and bubbly. Keep an eye on it to avoid burning the cheese.
  10. Once done, remove from the oven and let it sit for 5 minutes before serving. This resting period allows the casserole to set slightly, making it easier to serve.

Nutrition

Keywords: To avoid a gummy texture, make sure not to over-mix the potato and beef mixture when combining it with the sauce. Gentle folding works best.