Mushroom Swiss Burger Casserole
Why this Mushroom Swiss Burger Casserole works
This Mushroom Swiss Burger Casserole combines the flavors of a classic burger with the convenience of a casserole. It’s hearty, satisfying, and perfect for busy weeknights. Plus, it’s easy to make and great for feeding a crowd!
How to make Mushroom Swiss Burger Casserole
Ingredients:
- 1 lb ground beef
- 8 oz mushrooms, sliced
- 1 medium onion, chopped
- 2 cups Swiss cheese, shredded
- 1 cup milk
- 3 large eggs
- 1 cup breadcrumbs
- 1 tsp garlic powder
- 1 tsp salt
- 1/2 tsp black pepper
Directions:
- Preheat the oven to 350°F (175°C).
- In a skillet, cook the ground beef, mushrooms, and onion until the beef is browned and the vegetables are tender.
- In a bowl, whisk together the milk, eggs, garlic powder, salt, and pepper.
- In a greased casserole dish, layer half of the beef mixture, half of the Swiss cheese, and half of the breadcrumbs.
- Pour half of the egg mixture over the layers.
- Repeat the layers with the remaining ingredients.
- Bake for 30-35 minutes until set and golden on top.
- Let it cool for a few minutes before serving.
How to serve Mushroom Swiss Burger Casserole
This casserole pairs well with a simple green salad or your favorite veggies. Serve it warm and enjoy the gooey Swiss cheese and savory flavors that everyone will love!
How to store Mushroom Swiss Burger Casserole
To store leftovers, let the casserole cool completely. Place it in an airtight container and refrigerate for up to 3 days. You can also freeze it for longer storage. Just make sure to thaw it in the fridge before reheating.
Tips to make Mushroom Swiss Burger Casserole
- For extra flavor, add some Worcestershire sauce to the beef mixture while cooking.
- You can substitute ground turkey or chicken for the beef if you prefer.
- Try adding your favorite spices or herbs, such as oregano or thyme, to customize the taste.
Variations
Feel free to use other cheeses like cheddar or mozzarella. You can also add cooked vegetables like spinach or bell peppers for added nutrition.
FAQs
Can I make this casserole ahead of time?
Yes, you can prepare it the day before and bake it when you’re ready to serve.
How do I reheat leftovers?
Reheat in the oven at 350°F (175°C) for about 15-20 minutes or until heated through. You can also microwave individual portions.
Can I freeze Mushroom Swiss Burger Casserole?
Absolutely! Just let it cool, then freeze in an airtight container. Thaw in the fridge before reheating.

Mushroom Swiss Burger Casserole
Ingredients
Main Ingredients
- 1 lb ground beef
- 8 oz mushrooms, sliced
- 1 medium onion, chopped
- 2 cups Swiss cheese, shredded
- 1 cup milk
- 3 large eggs
- 1 cup breadcrumbs
Seasonings
- 1 tsp garlic powder
- 1 tsp salt
- ½ tsp black pepper
Instructions
Preparation
- Preheat the oven to 350°F (175°C).
- In a skillet, cook the ground beef, mushrooms, and onion until the beef is browned and the vegetables are tender.
- In a bowl, whisk together the milk, eggs, garlic powder, salt, and pepper.
Assembly
- In a greased casserole dish, layer half of the beef mixture, half of the Swiss cheese, and half of the breadcrumbs.
- Pour half of the egg mixture over the layers.
- Repeat the layers with the remaining ingredients.
Baking
- Bake for 30-35 minutes until set and golden on top.
- Let it cool for a few minutes before serving.
