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Mushroom Cheeseburger Casserole

Updated Apr 20, 2020Published Dec 14, 2019 By Julia 36 CommentsThis post may contain affiliate links.

Summary:
This 7-ingredient casserole is a low carb and keto version of my favorite mushroom swiss burger, with just 6g net carbs per serving. Deep savoriness from mushrooms and ground beef combined with distinct goat cheese flavors make this casserole a crowd-pleasing dinner. For more tasty ideas, see Casserole Recipes.
mushroom burger casserole served in white bowl

Mushroom Cheeseburger Casserole

5 from 18 votes
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Prep: 20 mins
Cook: 25 mins
Cool: 5 mins
Yield: 4 servings

INGREDIENTS

  • 1 pound ground beef (Note 1)
  • 1 pound mushrooms, sliced (Note 2)
  • 5 cloves garlic, thinly sliced
  • 8 slices swiss cheese, finely chopped (Note 3)
  • 1 cup crumbled goat cheese (Note 4)
  • 1/3 cup thinly sliced scallions (Note 5)
  • 1 teaspoon table salt

INSTRUCTIONS

  • Prepare: Preheat oven to 375 F. Set aside 8×8 inch baking dish (Note 6).
  • Cook Beef & Mushrooms: Add beef and salt to high-sided pan (Note 7) over high heat. Crumbling beef with stiff utensil, cook until browned and releasing liquid, a few minutes. Keeping everything in pan, add mushrooms and garlic. Cook until mushrooms are shrunken and most of released liquid has evaporated, stirring occasionally, 6 to 8 minutes. The only remaining liquid should be beef grease.
  • Assemble Casserole (Note 8): Transfer beef-mushroom-garlic mixture to baking dish (Note 9). Stir in goat cheese and 2/3 of swiss cheese until well-mixed with beef and mushrooms; goat cheese should melt quickly, nicely coating other ingredients. Evenly sprinkle scallions on top, then distribute remaining 1/3 of swiss cheese over them. Arrange surface of casserole so it's flat and even.
  • Bake & Serve: Transfer baking dish to oven. Bake uncovered at 375 F until casserole is very hot, bubbling up sides, and cheese is completely melted, about 15 minutes. Let casserole cool at room temperature for 5 minutes, then cut into 4 equal portions. Serve hot (Note 10), and store any leftovers (Note 11).

NUTRITION

Makes 4 Servings
Amount Per Serving (4×4-inch square):
Calories 540 ย 
Total Fat 35g 54%
ย ย ย Saturated Fat 18g 90%
Cholesterol 150mg 50%
Sodium 890mg 37%
Net Carb 6g ย 
Total Carb 6.5g 2%
ย ย ย Dietary Fiber 0.5g 1%
ย ย ย Sugars 1g ย 
Protein 45g ย 
Vitamin A 1% ยท Vitamin C 9% ยท Calcium 347% ยท Iron 25%

PHOTOS

mushroom burger casserole served in white bowl
mushrooms and beef in casserole dish
cheese and scallions added to casserole dish
freshly baked mushroom burger casserole

NOTES & TIPS

(1) Ground Beef. I typically use 85% lean.
(2) Mushrooms. I use cremini or baby bella.
(3) Swiss Cheese. Same as 6 ounces weight. You can substitute with any kind of softer cheese that melts easily, like shredded cheddar, mozzarella, or provolone.
(4) Goat Cheese. Same as 4 ounces weight. If you don’t like goat cheese, consider substituting with blue cheese, feta, ricotta, or cream cheese.
(5) Scallions. About 3 scallions, also known as green onions. I use both green and white parts.
(6) Baking Dish. I use a glass baking dish and do not grease or line. If you use a metal pan, your baking time may be different from mine since glass transfers heat differently than metal.
(7) Saute Pan. I use a 10-inch nonstick pan with 3-inch-tall sides. Avoid smaller pans because they won’t be able to simultaneously fit all of the raw mushrooms. The pan does not need to be pre-heated or greased.
(8) Assembling Casserole. Don’t be limited by the listed ingredients. You can add diced sun-dried tomatoes or sliced olives for a nice pop of tart flavor, or top with cooked crumbled bacon for its crispness and smoky flavor. For a spicy version, add thinly sliced jalapeรฑos. If youโ€™re looking for something sweeter, stir in caramelized onions. For more creaminess, add sour cream. Lots of options to customize this casserole.
(9) Transferring Beef & Mushrooms. Use a slotted spoon, or drain using a colander, if you prefer to leave behind any grease pooling on the bottom of the saute pan. This is optional and depends on how much fat you want in your final dish. If you used ground beef that’s fattier than 85%, you may want to leave behind some of the fat to avoid an overly greasy finish.
(10) Serving. This casserole tastes best when hot, so serve immediately before it cools down too much. Pair with creamy cauliflower mash or a refreshing Mediterranean salad.
(11) Leftovers. Cover tightly with foil and refrigerate up to 3 days. Reheat covered in a 350 F oven until very hot, 15 to 20 minutes. This casserole tastes better when itโ€™s hot rather than just warmed through.
(12) Increasing Yield. To increase the number of servings, you can double the ingredients proportionally. You’ll need to use a larger baking dish such as 13×9-inch, and increase the baking time as needed until the casserole is very hot and bubbling up sides.

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Filed Under: Low Carb, Low Carb Casseroles, Mains: Beef, Per Serving: 5-10g Net Carbs Tagged With: 31-60min, 6-10ingredients, featured, garlic, gluten free, goat cheese, ground beef, mushrooms, oven, scallions, swiss cheese

About Julia

ABOUT THE AUTHOR
Julia is a recipe developer and the founder of Savory Tooth. Since 2015, she has been sharing simple recipes for tasty dishes, mostly low carb and gluten free. Learn more.

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Parrot lady

I made this last night and it came out great! I made a larger version in a 9 x 13 pan with a lb. and a half of beef, subbed cream cheese for the goat only because it is what I had on hand. I added a bottom layer of cauliflower rice with garlic, and poured a beaten egg with a 1/4 cup cream over the whole thing. It was so good that we ate too much!

Vote Up13Vote Down  Reply
2 years ago
Barbara H

This was absolutely delish and very easy. I love the way the recipe is written. All the suggestions for substitutions. Although I am a long time cook, this is written in a way my son, who is just getting in to cooking could easily interpret. The only thing I had was cream cheese and it worked great with the swiss. I will definitely find some feta to try out next time. It’s a definite keeper. THANKS.

Vote Up11Vote Down  Reply
2 years ago
Donna Kelly

This way very good…however I didnโ€™t bake it..made it in a skillet….the goat cheese and Swiss were amazing..and the green onions set it off perfectly…I only used 8 oz of mushrooms and 4 oz of crumbled goat cheese as that was all I had on hand….the cheeses melted great..I did add a few tablespooons of water as my ground beef was super lean…and one TBSP of butter flavored coconut oil……..this will be made many times again…thank you.

Vote Up7Vote Down  Reply
2 years ago
Julia S

This recipe came across my feed today and since we had ground beef and mushrooms I decided to make it. I used blue cheese and mozzarella since that’s what was in the fridge. Added a little chopped tomato and basil – delicious!!! What a great basic casserole to finish any way you likeโ˜บ

Vote Up7Vote Down  Reply
2 years ago
Sue

Thinking of making this but I don’t like goat cheese. What can I substitute without changing nutrition counts?

Vote Up7Vote Down  Reply
3 years ago
Julia

How about blue cheese, feta cheese, or ricotta cheese? Cream cheese would probably be a decent substitute as well.

Vote Up7Vote Down  Reply
3 years ago
Nanarx6

I used Cream cheese with chives and it was a great substitute!!

Vote Up2Vote Down  Reply
1 year ago
Karen

Yes I made this n used cream cheese n heavy whipping cream! Mozzarella melted on top! I really liked it!

Vote Up1Vote Down  Reply
1 year ago
Kelly Peterson

I’m pinning and will try this the next time I make homemade goat cheese. Sounds yummy! I’m a sucker for any mushroom swiss burger recipes.

Vote Up7Vote Down  Reply
3 years ago
Sarah

I was planning on making french onion burgers for dinner tonight. (I have homemade french onion soup I wanted to use in a creative way but I found this casserole & I have mushrooms I need to use as well. Iโ€™m thinking of skipping the goat cheese and adding onions from the soup and thickening the broth a little & adding it to the casserole. Very excited to see how it comes out!

Vote Up5Vote Down  Reply
2 years ago
Julia

Great idea! Please let me know how it turns out for you.

Vote Up0Vote Down  Reply
2 years ago
Mary Jane Pieper

I made a version of this recipe using what I had on hand. I substituted cream cheese for the Goat cheese and shredded cheddar instead of Swiss. I added chopped fresh spinach. It was delicious!

Vote Up4Vote Down  Reply
2 years ago
VANCE ALLEN

This was incredible!! I added around a half teaspoon of crushed red pepper flake to the meat mixture. I did not add salt. Instead I added 6 slices of cooked crumbled bacon and topped with a little more cheese, 5 minutes before the end of cooking time, and continued cooking until cheese was just melted. I had it with buttery corn on the cob, and some sriracha ketchup on the side. [[Sriracha ketchup – ยฝ cup ketchup, 2 tablespoons sriracha, 1-3 tablespoons honey depending on your sweet tooth]]

Vote Up2Vote Down  Reply
1 year ago
Kara

Have you ever tried with ground turkey?

Vote Up2Vote Down  Reply
2 years ago
Desiree

That’s the only way I have made it we love it

Vote Up0Vote Down  Reply
1 year ago
Wanda

Oh my I have to say this is sooo good I love it. Easy to make very filling . I used feta cheese , and Mexican style blend cheese, and added 2 tablespoons of sour cream. It moved to top of my keto casserole list.

Vote Up1Vote Down  Reply
1 year ago
Donna

I made this tonight so versatile and so delicious. I will def. make this again!

Vote Up1Vote Down  Reply
2 years ago
Kristine

Made this tonight. Itโ€™s ๐Ÿ˜‹

Vote Up1Vote Down  Reply
3 years ago
Patricia Briccardi

made this was really good, I added red pepper to the mix

Vote Up0Vote Down  Reply
6 days ago
Sarah

Delicious!! I made for my diabetic mother and even my 12 year old and picky 13 year old loved it and both had seconds!!

Vote Up0Vote Down  Reply
3 months ago
Susan F

Delicious! I doubled the recipe in 13 x 9 pan and paired it with creamy garlic zoodles. I added sundried tomatoes to casserole and red pepper flakes. Good enough for company.

Vote Up0Vote Down  Reply
5 months ago
Janessa Hailey

I have made this twice in the last month, it is delicious and super easy to make with minimal ingredients, keeps you full, very good recipe!!

Vote Up0Vote Down  Reply
5 months ago
Leigh

I added havarti cheese (not goat cheese) and an onion to the beefy mixture. To garnish, I chopped up dill pickle and Mayo/mustard combo. Delish!!

Vote Up0Vote Down  Reply
1 year ago
Christy

Made this last night โ€” it was fantastic! This was a wonderful low-carb dish that will become a staple for our family. It made the whole house smell delicious! I chose to brown the mushrooms in butter first, then remove them to a plate while I browned the beef. Using what I had on hand, I ended up with half Swiss and half mozzarella, then used Ricotta in place of the goat cheese. Thanks for a great recipe!

Vote Up0Vote Down  Reply
1 year ago
Paula ๐Ÿพ๐Ÿพ

Excellent…we loved it…I did add some A1 steak sauce, and some chive cream cheese to the cooked meat… than some crumbed bacon on at the end…it was delicious…thank you

Vote Up0Vote Down  Reply
1 year ago
Amanda Rogers

Making this recipe tonight…but using our smoker to cook it.

Also my significant other would like to know if someone has watched a bit of Christmas Dragnet? He says Scallions…most people call them green onions but they’re really scallions…lol…

Vote Up0Vote Down  Reply
1 year ago
Kristin

This is delicious! Thanks!

Vote Up0Vote Down  Reply
1 year ago
Brianna

Do you happen to know how to make this in an instant pot? I live in Texas and it’s just so darn hot to use the oven most of the time. Thank you โค

Vote Up0Vote Down  Reply
2 years ago
Julia

Sorry, I don’t. I suspect that an Instant Pot version wouldn’t taste as good, since it would be cooking via steaming/wet heat instead of dry heat like the oven.

Vote Up0Vote Down  Reply
2 years ago
Robyn Spano

Delicious, I try a lot of recipes I’m disappointed with but this is a keeper! Fantastic!

Vote Up0Vote Down  Reply
2 years ago
Traci

What sides would go with this meal?

Vote Up0Vote Down  Reply
2 years ago
Julia

See Note 10 for side dish suggestions.

Vote Up0Vote Down  Reply
2 years ago

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