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If you're on the lookout for a delicious and hearty meal that brings comfort to the dinner table, look no further than the Savory Mushroom Swiss Burger Casserole. This dish perfectly combines the rich, savory flavors of a classic burger with the satisfying texture of a casserole, making it an ideal choice for family gatherings or cozy weeknight dinners. The combination of ground beef, sautéed mushrooms, fresh spinach, and creamy Swiss cheese creates an irresistible flavor profile that will leave everyone asking for seconds.

Mushroom Swiss Burger Casserole

Discover the ultimate comfort food with this Savory Mushroom Swiss Burger Casserole recipe! This hearty dish blends the flavors of a classic burger with a creamy, cheesy casserole. With key ingredients like ground beef, sautéed mushrooms, fresh spinach, and gooey Swiss cheese, it's perfect for family gatherings or cozy dinners. Easy to make and even easier to love, this casserole is sure to become a favorite in your home. Try it and enjoy a deliciously satisfying meal!
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Ingredients
  

1 lb ground beef (80/20 blend)

1 medium onion, diced

3 cups sliced mushrooms (button or cremini)

3 cloves garlic, minced

1 teaspoon Worcestershire sauce

1 teaspoon soy sauce

1 teaspoon Dijon mustard

Salt and pepper, to taste

4 cups baby spinach

8 slices Swiss cheese

1 lb frozen hash brown potatoes (shredded)

4 large eggs

1 cup milk

1/2 cup mayonnaise

1 cup grated Swiss cheese (for topping)

2 tablespoons chopped fresh parsley (for garnish)

Instructions
 

Preheat the oven to 350°F (175°C). Grease a 9x13-inch casserole dish with cooking spray or butter.

    Cook the beef: In a large skillet over medium heat, add the ground beef. Cook until browned, breaking it apart with a spatula (about 5-7 minutes). Drain excess fat.

      Add vegetables: Add the diced onion and sliced mushrooms to the skillet. Cook until they are softened (about 5 minutes). Stir in the minced garlic, Worcestershire sauce, soy sauce, Dijon mustard, salt, and pepper. Cook for an additional minute, then remove from heat.

        Layer spinach: Add the baby spinach to the mixture in the skillet. Stir until wilted, then set aside to cool slightly.

          Assemble the casserole: Spread the frozen hash browns evenly in the bottom of the greased casserole dish. Layer the beef and mushroom mixture over the hash browns. Arrange the 8 slices of Swiss cheese on top of the beef mixture.

            Prepare egg mixture: In a separate bowl, whisk together the eggs, milk, and mayonnaise. Pour this mixture evenly over the layers in the casserole dish.

              Add final topping: Sprinkle the grated Swiss cheese over the top of the casserole.

                Bake: Cover the casserole with aluminum foil and bake in the preheated oven for 30 minutes. Then remove the foil and bake for another 15-20 minutes, or until the cheese is bubbly and golden brown.

                  Garnish and serve: Once done, let the casserole cool for 5-10 minutes before slicing. Garnish with chopped fresh parsley and serve warm.

                    Prep Time: 20 minutes | Total Time: 1 hour | Servings: 6