Cheesy Ground Beef and Potato Casserole Tips, FAQ & printable recipe

Tips for success

For the absolute best results, slice the potatoes as thinly and uniformly as possible. A mandoline slicer is the perfect tool for this task, ensuring that every slice is exactly the same thickness.

If the slices are too thick, they will take much longer to cook, leaving you with crunchy potato layers in an otherwise finished casserole.

To enhance the flavor of the gravy, consider mixing in a splash of Worcestershire sauce or a tablespoon of sour cream before pouring it over the casserole.

This adds a subtle tang and depth of flavor that complements the earthy mushrooms and savory beef beautifully. Always let the casserole rest for at least ten minutes after baking to allow the sauce to thicken.

Variations

• Spicy Pepper Jack: Swap the Colby Jack cheese for Pepper Jack cheese and add a pinch of cayenne pepper or diced jalapeños to the beef mixture for a spicy kick.
• Bacon and Cheddar: Stir crumbled cooked bacon into the ground beef layer and top with sharp cheddar cheese instead of Colby Jack for a smoky, rich flavor.
• Vegetarian Lentil Casserole: Replace the ground beef with cooked brown lentils or a plant-based meat alternative, and use a vegetarian-friendly mushroom gravy.

Storage and make-ahead

Fridge

Keep leftovers in an airtight container in the refrigerator for up to 4 days. Ensure it cools within 2 hours of baking.

Freezer

Freeze the baked and cooled casserole, tightly wrapped, for up to 2 months. Thaw in the refrigerator overnight before reheating.

Reheat

Reheat individual portions in the microwave for 2 minutes, or warm the entire dish in a 350°F (175°C) oven covered with foil for 20 minutes.

Store any leftover casserole in an airtight container in the refrigerator for up to three to four days. Allow the dish to cool completely at room temperature for no more than two hours before transferring it to the fridge. This prevents bacterial growth and keeps the potatoes from becoming soggy.

This casserole can be assembled ahead of time and stored in the refrigerator. Assemble all the layers, cover the dish tightly with plastic wrap, and refrigerate for up to twenty-four hours.

When ready to bake, remove the plastic wrap, cover with aluminum foil, and bake as directed, adding about ten minutes to the initial covered baking time.

Serving ideas

Serve this hearty casserole warm, straight from the baking dish. It makes a complete and satisfying meal on its own, but it also pairs beautifully with a simple, crisp green salad tossed in a light vinaigrette.

The freshness of the salad cuts through the rich, creamy texture of the gravy and melted cheese.

For a complete comfort food feast, serve the casserole alongside roasted green beans or steamed broccoli. A basket of warm garlic bread or crusty dinner rolls is also excellent for scooping up any extra mushroom gravy left on the plate. Garnish with extra fresh parsley for a pop of color.

Frequently asked questions

Recipe card

Cheesy Ground Beef and Potato Casserole

Prep 20 minCook 1 h 5 minRest 10 minTotal 1 h 35 minServes 8

Ingredients

• 2 lb russet potatoes, peeled and thinly sliced
• 1 1/2 lb ground beef
• 1 tsp kosher salt
• 1/2 tsp black pepper
• 1 tsp garlic powder
• 1 tsp onion powder
• 2 cups creamy mushroom gravy
• 2 cups Colby Jack cheese, shredded
• 2 tbsp fresh parsley, chopped

Instructions

1. Preheat the oven to 375°F (190°C). Grease a 9x13-inch baking dish with non-stick cooking spray. Peel the russet potatoes and slice them thinly to about one-eighth of an inch thick using a sharp knife or a mandoline.
2. Heat a large skillet over medium-high heat. Add the ground beef, kosher salt, black pepper, garlic powder, and onion powder. Cook, breaking up the meat with a spatula, for 6 to 8 minutes until fully browned and cooked to an internal temperature of 160°F (71°C). Drain any excess grease from the skillet.
3. Arrange half of the thinly sliced potatoes in an even, slightly overlapping layer at the bottom of the prepared 9x13-inch baking dish.
4. Spread the browned ground beef evenly over the potato layer. Arrange the remaining potato slices on top of the beef. Pour the creamy mushroom gravy evenly over the entire casserole, ensuring it covers all the potatoes.
5. Cover the baking dish tightly with aluminum foil. Bake in the preheated oven at 375°F (190°C) for 45 minutes, or until the potatoes are tender when pierced with a fork.
6. Remove the foil and sprinkle the shredded Colby Jack cheese evenly over the top. Return the dish to the oven uncovered and bake for an additional 10 to 15 minutes until the cheese is melted and bubbling. Garnish with fresh chopped parsley before serving.

Contains: gluten, milk

Estimated nutrition per serving

Calories

420

Protein

22.5 g

Carbohydrates

25 g

Fat

25 g

Fiber

2.5 g

Sugar

2 g

Sodium

780 mg

Automatic estimate from the ingredient list, not laboratory-verified.