Ingredients
Scale
- 3 lbs Yukon gold potatoes, sliced 1/8-inch thick
- 1 lb lean ground beef
- 1 medium onion, finely diced
- 3 cloves garlic, minced
- 2 cups Colby Jack cheese, shredded
- 1 cup milk (whole milk preferred for creaminess)
- 1 cup heavy cream
- 3 tbsp all-purpose flour
- 3 tbsp butter
- 1 tsp smoked paprika
- 1/2 tsp dried thyme
- Salt and pepper to taste
- 2 tbsp fresh parsley, chopped (for garnish)
Instructions
- Prep the Potatoes: Wash and slice the Yukon gold potatoes into 1/8-inch thick rounds. A mandoline slicer helps achieve uniform slices for even cooking. Set aside in a bowl of cold water to prevent browning.
- Cook the Ground Beef: In a large skillet over medium-high heat, cook the lean ground beef until browned, breaking it apart with a spatula. Drain excess fat. Add diced onion and cook until translucent, about 3-4 minutes. Stir in minced garlic and cook for another 30 seconds until fragrant. Season with salt, pepper, smoked paprika, and thyme. Remove from heat and set aside.
- Make the Cream Sauce: In a saucepan, melt butter over medium heat. Whisk in the flour to create a roux, cooking for 1-2 minutes until golden. Slowly whisk in the milk and heavy cream, ensuring no lumps form. Cook, stirring frequently, until the sauce thickens—about 4-5 minutes. Season with salt and pepper to taste.
- Assemble the Casserole: Preheat oven to 375°F (190°C). In a greased 9×13-inch baking dish, layer 1/3 of the potato slices, slightly overlapping. Top with half of the cooked ground beef mixture, followed by a sprinkle of Colby Jack cheese. Pour a portion of the cream sauce over the layer. Repeat with another 1/3 of the potatoes, the remaining beef, more cheese, and more sauce. Finish with the final layer of potatoes, the remaining sauce, and the rest of the cheese.
- Bake: Cover the dish with foil and bake for 45 minutes. Then uncover and bake for an additional 20-25 minutes, until the potatoes are tender and the top is golden and bubbly. A knife should slide easily through the potatoes when done.
- Garnish & Serve: Let the casserole rest for 10 minutes before serving to allow the layers to set. Garnish with chopped fresh parsley for a pop of color and freshness.
Notes
- If your sauce gets too thick, whisk in a splash of milk to loosen it.
- For extra flavor, sprinkle additional paprika or a dash of cayenne between layers.
- Prep Time: 25 minutes
- Cook Time: 1 hour 10 minutes
- Category: Main Dish
- Method: Baked
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 450 kcal
Keywords: casserole, ground beef, potatoes, cheesy, comfort food