Mushroom And Swiss Cheeseburger Casserole

by 247tasty

This is an easy weeknight dinner that has all the flavors of your favorite Mushroom Swiss Cheeseburger. The meat filling is just like that of a hamburger, the Worcestershire sauce gives this a savory flavor, and the swiss cheese binds all that together. A great idea to use up the mushrooms we’ve been keeping. Delicious!


1 pound lean ground beef
1 (16 oz.) package potato dumplings or gnocchi
8 oz. baby portobello mushrooms, sliced
1 yellow onion, finely chopped
4 cloves garlic, minced
2 teaspoons Italian seasoning
2 tablespoons unsalted butter
2 tablespoons extra-virgin olive oil
2 tablespoons Worcestershire sauce
1 (15 oz.) can cream of mushroom soup
1 cup heavy whipping cream
2 cups Swiss cheese, grated
Kosher salt and freshly ground pepper, to taste

How to make Mushroom And Swiss Cheeseburger Casserole

Step 1: Prepare the oven. Preheat it to 350 degrees F. Grease a 9 x 13-inch dish lightly with butter or spray with a non-stick spray.

Step 2: In a large pan or skillet, melt the butter over medium-high heat. Saute the onions and mushroom for approximately 6 to 8 minutes or until softened. And season with salt and pepper.

Step 3: Then, stir in the minced garlic and cook for about 1 to 2 minutes until fragrant. Season with Italian seasoning.

Step 4: Mix in the ground beef and cook until browned. Once cooked, drain any excess fat, then, stir in the Worcestershire sauce, cream of mushroom soup, and heavy whipping cream.

Step 5: Decrease the heat to medium and resume cooking for 3 to 5 minutes more. Give the flavors a chance to mix before stirring in the potato dumplings. Cook for another 5 minutes.

Step 6: Once done, transfer the mixture to a greased baking dish. Top the casserole with Swiss cheese.

Step 7: Place inside the preheated oven and bake for about 30 minutes, covered with aluminum foil. After 30 minutes, remove the foil and broil for 2 to 3 minutes or until the cheese is bubbly and browned.

Step 8: Remove from the oven and serve immediately.

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