If you’ve been craving something that hits all the savory, cheesy, and hearty notes you love in comfort food, let me introduce you to my current obsession: Mushroom Cheeseburger Casserole. Imagine all the best flavors of your favorite cheeseburger, layered with earthy mushrooms and two kinds of gooey cheese, baked to bubbly perfection. This recipe is a weeknight hero—rich, deeply satisfying, and perfect for sharing with family or friends. Whether you’re after an easy dinner or prepping for a potluck, Mushroom Cheeseburger Casserole is guaranteed to have everyone coming back for seconds.
Ingredients You’ll Need
This Mushroom Cheeseburger Casserole keeps things refreshingly simple—each ingredient is chosen for how it elevates the dish’s flavor, texture, or visual appeal. Here’s what you’ll need (plus a few tips to help you get it just right!):
- Ground beef: The heart of our casserole, provides richness and those classic “burger” notes—85% lean is ideal for a juicy but not greasy finish.
- Mushrooms (cremini or baby bella): These bring an earthy, savory punch and plenty of umami, bulking up the casserole while keeping it low-carb.
- Garlic: A handful of sliced cloves perfumes the dish and gives depth to every bite.
- Swiss cheese: Melts beautifully and adds nutty, creamy complexity—finely chopping the cheese ensures every forkful is ultra-cheesy.
- Goat cheese: Adds tang and silkiness, taking the casserole from hearty to positively decadent.
- Scallions: For a pop of fresh flavor and color—use both the green and white parts for best results.
- Table salt: Essential for bringing out all the savory flavors. Don’t skip it!
How to Make Mushroom Cheeseburger Casserole
Step 1: Preheat and Prep
Start by preheating your oven to 375 F. You’ll need an 8×8-inch glass baking dish; there’s no need to grease it. If you don’t have glass, a metal pan works fine, but keep an eye on bake time since metal heats up a bit differently. While your oven heats, gather all your ingredients, slice up the mushrooms and garlic, and chop your cheeses. Being prepped from the start makes assembling this Mushroom Cheeseburger Casserole absolutely stress-free.
Step 2: Brown the Beef and Add Mushrooms
Grab a large, high-sided saute pan (10-inch wide with tall sides is best). Add your ground beef and sprinkle in the salt. Use a sturdy utensil to break up the meat as it cooks over high heat. Once the beef is browned and has released its liquid, toss in your sliced mushrooms and garlic. Continue sautéing, stirring occasionally, until the mushrooms shrink down and nearly all the released liquid (except for the beef grease) has evaporated. This step is where so much flavor gets built for your Mushroom Cheeseburger Casserole!
Step 3: Assemble the Casserole
Pour your hot beef-mushroom-garlic mixture into the baking dish. Now comes the creamy magic—stir in the goat cheese and about two-thirds of your chopped Swiss cheese until everything is deliciously coated. The goat cheese will melt right in, making the filling luscious. Sprinkle scallions evenly on top, then distribute the rest of the Swiss cheese. Smooth out the surface with your spatula so the cheese gets golden and bubbly in the oven.
Step 4: Bake to Bubbly Perfection
Slide the casserole into your preheated 375 F oven, uncovered. Bake for 15 minutes, or until the mixture is bubbling up the sides and the cheese is thoroughly melted. Let your Mushroom Cheeseburger Casserole rest for about five minutes out of the oven before cutting it into four hearty portions. This moment of anticipation is always worth it—the flavors deepen, and the portions hold together beautifully.
How to Serve Mushroom Cheeseburger Casserole
Garnishes
A sprinkle of fresh scallions or chives brightens up the golden, cheesy top. For extra color and a flavor boost, consider adding diced tomatoes, a few pickles, or a little drizzle of your favorite burger sauce just before serving. These small touches make your Mushroom Cheeseburger Casserole feel extra-special and completely customizable.
Side Dishes
Because this casserole is rich and satisfying, it pairs best with lighter sides. Think a crisp green salad tossed with vinaigrette, steamed broccoli, or (my personal favorite) creamy cauliflower mash. You can also serve it with a tangy cucumber salad or simple roasted veggies for a color-coordinated, crowd-pleasing meal.
Creative Ways to Present
For a fun spin, try serving individual portions in ramekins for a dinner party, or spoon the hot casserole over toasted sourdough for a “cheeseburger open-face sandwich” vibe. If you’re feeding a crowd, layer the casserole into slider buns for DIY burger night—kids and adults love this playful approach!
Make Ahead and Storage
Storing Leftovers
Leftover Mushroom Cheeseburger Casserole holds up beautifully in the fridge. Simply cover the baking dish tightly with foil (or transfer portions to airtight containers) and refrigerate for up to three days. The flavors only deepen, and it reheats like a dream!
Freezing
To freeze, let the casserole cool completely, then cut it into portions and wrap each tightly in plastic wrap and foil. You can also freeze the whole dish if you like—just double-wrap it to protect against freezer burn. Defrost in the fridge overnight before reheating for a quick, comforting meal whenever the craving strikes.
Reheating
For best results, reheat leftover casserole covered in a 350 F oven for about 15–20 minutes or until piping hot. If you’re in a pinch, you can also use the microwave, though the oven helps the cheese stay gooey and gives the top a nice texture. Always let it heat all the way through for the full, melty experience.
FAQs
Can I substitute the goat cheese in Mushroom Cheeseburger Casserole?
Absolutely! If goat cheese isn’t your thing, you can swap in blue cheese for a punchy flavor, feta for tang, ricotta for extra creaminess, or even classic cream cheese. Your casserole will still be ultra-indulgent and delicious.
What kind of mushrooms work best?
Cremini or baby bella mushrooms offer the perfect meaty texture and deep, earthy flavor, but white button mushrooms work in a pinch. Feel free to experiment with whatever fresh mushrooms you have on hand.
Can I double this recipe for a crowd?
Yes! Just double all the ingredients and use a 13×9-inch baking dish. Your baking time may increase a bit—just wait for the casserole to bubble around the edges and ensure the cheese is fully melted and golden before serving.
How do I avoid a greasy casserole?
If you use ground beef with more than 85% fat, you can spoon off or drain excess grease before adding the cheeses. This keeps your Mushroom Cheeseburger Casserole rich but not heavy.
Is this casserole gluten-free?
It is naturally gluten-free, as there are no breadcrumbs or flour. Just double-check your cheese labels to confirm no fillers are used, and you’re good to go for gluten-free eaters.
Final Thoughts
There’s something irresistibly homey about pulling a bubbling, golden Mushroom Cheeseburger Casserole from the oven—it promises big flavor and effortless comfort. Make it once, and it’ll definitely earn a spot in your regular dinner rotation. Gather your ingredients, invite a friend, and watch how quickly it disappears!
Print
Mushroom Cheeseburger Casserole Recipe
- Total Time: 50 minutes
- Yield: 4 servings
- Diet: Vegetarian
Description
This Mushroom Cheeseburger Casserole is a hearty and flavorful dish that combines the classic flavors of a cheeseburger with savory mushrooms. It’s easy to make and perfect for a cozy family dinner.
Ingredients
Ground Beef:
- 1 pound ground beef (85% lean)
Mushrooms:
- 1 pound mushrooms, sliced (cremini or baby bella)
Garlic:
- 5 cloves garlic, thinly sliced
Swiss Cheese:
- 8 slices swiss cheese, finely chopped
Goat Cheese:
- 1 cup crumbled goat cheese
Scallions:
- 1/3 cup thinly sliced scallions
Salt:
- 1 teaspoon table salt
Instructions
- Prepare: Preheat oven to 375 F. Set aside 8×8 inch baking dish.
- Cook Beef & Mushrooms: Brown beef with salt in a pan. Add mushrooms and garlic, cook until mushrooms are shrunken.
- Assemble Casserole: Transfer beef-mushroom-garlic mixture to baking dish. Mix in goat cheese and 2/3 of swiss cheese. Sprinkle scallions and remaining swiss cheese on top.
- Bake & Serve: Bake at 375 F until hot and bubbly. Let cool for 5 minutes, then cut into portions and serve hot.
Notes
- Customize the casserole by adding sun-dried tomatoes, olives, jalapeños, caramelized onions, or sour cream.
- Refrigerate leftovers for up to 3 days and reheat in a 350 F oven.
- To increase servings, double ingredients and use a larger baking dish.
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Category: Main Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving (4×4-inch square)
- Calories: 540
- Sugar: 1g
- Sodium: 890mg
- Fat: 35g
- Saturated Fat: 18g
- Carbohydrates: 6.5g
- Fiber: 0.5g
- Protein: 45g
- Cholesterol: 150mg
