If you're craving a filling, hearty, and savory meal, this Big Montana Casserole is perfect for satisfying hungry appetites! This casserole is inspired by the big flavors of Montana's cowboy country, combining seasoned ground beef, creamy potatoes, cheese, and a savory sauce in one dish. It’s the kind of comfort food that’s perfect for feeding a family or serving at potlucks, and it’s easy to customize with your favorite ingredients. Read on for the full recipe, along with tips, variations, and everything you need to know to make this delicious casserole.
What is Big Montana Casserole?
Big Montana Casserole is a hearty layered casserole made with seasoned ground beef, potatoes, cheese, and a creamy sauce. It’s inspired by classic cowboy cooking and Montana’s love for meat-and-potato dishes. This casserole layers cooked ground beef with tender potatoes, a creamy mixture, and a layer of cheese for a baked dish that’s rich, filling, and perfect for feeding a crowd.
Ingredients List for Big Montana Casserole
Here’s everything you’ll need to make this hearty casserole:
- 1 pound ground beef (or ground bison for a more authentic Montana flavor)
- 1 medium onion, chopped
- 3 cloves garlic, minced
- 5 medium russet potatoes, thinly sliced
- 1 can (10.5 oz) cream of mushroom soup (or cream of chicken)
- 1 cup sour cream
- ½ cup milk
- 1 teaspoon garlic powder
- 1 teaspoon onion powder
- Salt and pepper to taste
- 1 ½ cups shredded cheddar cheese (or your favorite cheese blend)
- 1 teaspoon smoked paprika (optional, for extra flavor)
- 1 tablespoon olive oil (for cooking the beef)
- Fresh parsley or green onions, chopped (optional garnish)
Substitutions and Variations for Big Montana Casserole
This casserole is easy to customize to fit your taste or dietary needs. Here are some suggestions:
- Use ground bison: For a more authentic Montana flavor, substitute ground beef with ground bison. It’s leaner and has a richer flavor.
- Vegetarian option: Swap the ground beef with plant-based ground meat or lentils for a vegetarian version.
- Sweet potatoes: Use sweet potatoes instead of russet potatoes for a slightly sweeter flavor and added nutrients.
- Add vegetables: Bulk up the casserole by adding vegetables like bell peppers, spinach, zucchini, or carrots.
- Spicy twist: Add diced jalapeños or red pepper flakes for a little heat.
- Extra cheesy: Use a mix of cheeses like cheddar, mozzarella, Monterey Jack, or even pepper jack for a melty, gooey finish.
Step-by-Step Cooking Instructions

Here’s how to make this easy and delicious Big Montana Casserole:
- Preheat the oven: Set your oven to 375°F (190°C).
- Cook the ground beef: In a large skillet, heat the olive oil over medium heat. Add the ground beef and cook until browned, breaking it up as it cooks (about 5-7 minutes). Add the chopped onion and minced garlic, and cook for another 3-4 minutes until the onion is softened. Drain any excess fat.
- Season the beef: Stir in the garlic powder, onion powder, smoked paprika (if using), salt, and pepper. Set the beef mixture aside.
- Prepare the creamy mixture: In a medium bowl, mix together the cream of mushroom soup, sour cream, and milk until smooth.
- Layer the casserole: Grease a 9x13-inch baking dish. Start by layering half of the sliced potatoes in an even layer on the bottom of the dish. Spread half of the cooked beef mixture over the potatoes, then pour half of the creamy mixture over the beef. Repeat the layers with the remaining potatoes, beef, and creamy mixture.
- Top with cheese: Sprinkle the shredded cheddar cheese evenly over the top of the casserole.
- Bake the casserole: Cover the dish with aluminum foil and bake for 40-45 minutes. Remove the foil and bake for an additional 10-15 minutes, or until the cheese is melted and bubbly, and the potatoes are tender.
- Cool slightly and serve: Let the casserole cool for 5-10 minutes before serving. Garnish with fresh parsley or green onions, if desired.
How to Cook Big Montana Casserole: A Step-by-Step Guide
- Preheat the oven to 375°F (190°C).
- Cook the ground beef with onions and garlic until browned.
- Season the beef with garlic powder, onion powder, paprika, salt, and pepper.
- Mix the creamy sauce: Combine cream of mushroom soup, sour cream, and milk.
- Layer the casserole: Alternate layers of sliced potatoes, beef, and the creamy mixture in a greased baking dish.
- Top with shredded cheese.
- Bake for 40-45 minutes covered, then remove the foil and bake for 10-15 minutes more until bubbly and golden.
- Cool slightly, garnish with parsley or green onions, and serve.
Common Mistakes to Avoid
To make sure your Big Montana Casserole turns out perfectly, avoid these common mistakes:
- Not slicing the potatoes thinly enough: Slice the potatoes about ⅛ inch thick so they cook through evenly. If they are too thick, they may remain undercooked, even after baking.
- Undercooking the beef: Make sure to cook the ground beef fully before adding it to the casserole to ensure it's flavorful and cooked through.
- Not seasoning enough: Don’t forget to season the beef mixture well with salt, pepper, garlic powder, and other spices. The potatoes will absorb the flavors as the casserole bakes, so seasoning is key for a flavorful dish.
Serving and Presentation Tips
Though this casserole is a hearty, casual dish, you can still make it look appealing when serving:
- Garnish with fresh herbs: A sprinkle of fresh parsley or green onions on top adds a pop of color and brightness to the rich casserole.
- Serve with a side salad: A light, crisp salad with a tangy vinaigrette balances the richness of the casserole perfectly.
- Pair with crusty bread: Serve the casserole with a side of crusty bread or garlic bread to soak up the creamy sauce.
How to Serve Big Montana Casserole
Here’s how to serve this filling casserole for the best results:
- Main dish: Serve the casserole as the main course, paired with simple sides like a fresh salad, steamed green beans, or roasted vegetables.
- Potluck favorite: This casserole is great for potlucks or family gatherings because it’s easy to make, transports well, and feeds a crowd.
- Leftovers: Leftovers can be stored in the refrigerator for 3-4 days. Reheat individual portions in the microwave or oven for a quick, satisfying meal.
Presentation Ideas for Big Montana Casserole
Make your casserole look extra appetizing with these simple presentation ideas:
- Serve in a cast iron skillet: For a rustic, cowboy-inspired presentation, bake and serve the casserole in a large cast iron skillet.
- Individual ramekins: For a dinner party, portion the casserole into individual ramekins or oven-safe dishes for a more elegant presentation.
- Extra cheesy finish: Before broiling, sprinkle some extra shredded cheese on top for an extra melty and golden finish.
Big Montana Casserole Recipe Tips
Here are a few extra tips to ensure your casserole turns out perfect every time:
- Use a mandolin for even potato slices: A mandolin will help you slice the potatoes evenly and thinly, ensuring they cook through properly.
- Make it ahead: You can assemble the casserole up to 24 hours in advance and store it in the refrigerator until ready to bake. Just add a few extra minutes to the baking time if it’s cold from the fridge.
- Freeze for later: This casserole freezes well. Assemble it, but don’t bake it. Wrap it tightly in plastic wrap and foil, and freeze for up to 3 months. Thaw overnight in the refrigerator before baking.
Frequently Asked Questions (FAQs)
Q: Can I use sweet potatoes in this casserole?
A: Yes! Sweet potatoes can be a delicious alternative to russet potatoes, adding a slightly sweeter flavor and more nutrients.
Q: Can I make Big Montana Casserole ahead of time?
A: Absolutely! You can assemble the casserole up to 24 hours in advance and refrigerate it. When ready to bake, just add a few extra minutes to the baking time if it’s cold from the fridge.
Q: Can I freeze this casserole?
A: Yes! You can freeze the unbaked casserole. Wrap it tightly in plastic wrap and aluminum foil, and freeze for up to 3 months. Thaw overnight in the fridge before baking as directed.
Q: How long will leftovers last in the fridge?
A: Leftover casserole can be stored in an airtight container in the refrigerator for 3-4 days. Reheat in the microwave or oven before serving.
Q: Can I use other vegetables in this casserole?
A: Absolutely! Feel free to add vegetables like spinach, bell peppers, zucchini, or mushrooms for added flavor and nutrition.
Conclusion
This Big Montana Casserole is a hearty, comforting dish
that’s perfect for family dinners, potlucks, or any occasion where you need to feed a crowd. With its layers of seasoned ground beef, creamy potatoes, and melty cheese, this casserole is packed with flavor and sure to be a hit. Customize it with your favorite ingredients or make it ahead for an easy, delicious meal. Give this recipe a try and enjoy the big, bold flavors of Montana in every bite!
PrintBig Montana Casserole Recipe
Big Montana Casserole is a comforting, hearty dish that features layers of seasoned ground beef, potatoes, and cheese. This simple, one-pan casserole is perfect for feeding a crowd or enjoying as a weeknight dinner. Packed with flavor and easy to prepare, it's sure to become a family favorite.
- Prep Time: 20 minutes
- Cook Time: 55 minutes
- Total Time: 1 hour 15 minutes
- Yield: 6 servings
- Category: Dinner, Casserole
- Method: Baking
- Cuisine: American-Comfort food
- Diet: Gluten Free
Ingredients
- Ground beef
- Russet potatoes (thinly sliced)
- Onion (chopped)
- Garlic (minced)
- Cheddar cheese (shredded)
- Cream of mushroom soup
- Sour cream
- Milk
- Butter
- Olive oil
- Salt
- Pepper
- Paprika (optional)
- Fresh parsley (optional, for garnish)
Instructions
- Preheat oven to 375°F (190°C) and grease a 9x13 baking dish.
- In a large skillet, heat olive oil over medium heat. Add chopped onions and garlic, sauté until softened.
- Add ground beef, season with salt, pepper, and paprika, and cook until browned. Drain excess fat.
- In a mixing bowl, combine cream of mushroom soup, sour cream, and milk. Stir until smooth.
- Layer half of the thinly sliced potatoes in the bottom of the prepared baking dish.
- Spread half of the cooked beef mixture over the potatoes.
- Pour half of the soup mixture over the beef and top with half of the shredded cheddar cheese.
- Repeat layers with the remaining potatoes, beef mixture, soup mixture, and cheese.
- Dot the top with small pieces of butter.
- Cover with foil and bake for 40 minutes. Remove foil and bake for an additional 10–15 minutes, until the potatoes are tender and the cheese is golden and bubbly.
- Let the casserole rest for 5 minutes before serving. Garnish with fresh parsley if desired.
Notes
- For added flavor, mix in green bell peppers or mushrooms with the ground beef.
- Substitute ground turkey for a leaner version.
- Serve with a side salad or steamed vegetables for a complete meal.
Nutrition
- Serving Size: ⅙ of casserole
- Calories: 550
- Sugar: 3g
- Sodium: 950mg
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