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This casserole is a side dish of fresh mushrooms and broccoli florets coated in a creamy cheese sauce. Low carb, keto-friendly, and perfect for the holidays!
If you enjoyed this keto cheese bread and these creamy garlic butter mushrooms then you will love this casserole!
Why I Love This Keto Broccoli Mushroom Casserole
- Cooks in under 40 minutes!
- It’s absolutely perfect for a side dish option and those cooler winter days!
- The ultimate way to enjoy healthy vegetables! Veggies smothered in cheese sauce never disappoint.
- Broccoli and Mushrooms are a rich source of vitamins and minerals.
Ingredient Notes
Broccoli – I recommend using fresh broccoli. If you’re not a fan of broccoli, you may use cauliflower florets instead.
Mushrooms – Any type of fresh mushrooms will work.
How To Make
- Boil the broccoli for 3 minutes in boiling salted water. Place the broccoli in a colander and discard any excess water. Pat dry the broccoli with a paper towel if necessary.
- Preheat oven to 350 degrees F.
- In a medium skillet, add some butter and let it melt over medium heat. Add the mushrooms and cook for 5 minutes, stirring frequently.
- Add the onions and cook for 1 minute. Stir in the fresh garlic and red crushed pepper and cook for 20 seconds. Season with salt and pepper.
- In a small bowl, combine the cheddar cheese and mozzarella cheese.
- In a large bowl, combine the softened cream cheese, mayo, sour cream, heavy cream, and 1/4 cup of the cheese mixture.
- Add the mushroom mixture and broccoli to the cream cheese mixture and mix well.
- Place the broccoli mixture into a 9×9 baking dish and top it off with the remaining cheese. Cover with aluminum foil and bake for 20 minutes. Uncover and bake for an additional 5-10 minutes. Enjoy!
Top Tips
- Because this is a keto meal and doesn’t contain any flour or thickening agents, the sauce will thin out a bit as it bakes. Therefore make sure to remove any excess liquid from the broccoli and mushrooms!
- You may use any type of cheese you prefer! Colby Jack cheese or pepper Jack cheese are excellent options!
- Want to make it spicy? Add a generous amount of red crushed pepper and a pinch of cayenne pepper.
Do I Have To Cook The Broccoli Before Putting It In The Casserole?
Yes, I highly recommend steaming, boiling, or blanching the broccoli otherwise the broccoli will be tough and the sauce won’t spread easily.
Storage
Place any leftovers in an air-tight container and refrigerate for up to 2 days.
More Keto Recipes You’ll Enjoy
Tried this keto broccoli mushroom casserole recipe? Please leave a star ⭐️⭐️⭐️⭐️⭐️ rating in the recipe card below and/or a review in the comments section further down the page. And consider following me on Facebook, Instagram, or Pinterest!
Keto Broccoli Mushroom Casserole
Ingredients
- 1 lb broccoli
- 1 lb mushrooms
- 1/2 small onion , finely diced
- 2 garlic cloves , finely minced
- 4 ounces cream cheese , softened
- 1/2 cup mayo
- 1/2 cup sour cream , full fat
- 1/4 cup heavy cream
- 1 1/2 cups cheddar cheese, freshly grated
- 1/2 cup mozzarella cheese
- 1/4 tsp red crushed pepper , optional
- salt and pepper to taste
- oil , for cooking mushrooms and onions
Instructions
- Boil the broccoli for 3 minutes in boiling salted water. Place the broccoli in a colander and discard any excess water. Pat dry the broccoli with a paper towel if necessary.
- Preheat oven to 350 degrees F.
- In a medium skillet, add some butter and let it melt over medium heat. Add the mushrooms and cook for 5 minutes, stirring frequently.
- Add the onions and cook for 1 minute. Stir in the fresh garlic and red crushed pepper and cook for 20 seconds. Season with salt and pepper.
- In a small bowl, combine the cheddar cheese and mozzarella cheese.
- In a large bowl, combine the softened cream cheese, mayo, sour cream, heavy cream, and 1/4 cup of the cheese mixture.
- Add the mushroom mixture and broccoli to the cream cheese mixture and mix well.
- Place the broccoli mixture into a 9×9 baking dish and top it off with the remaining cheese. Cover with aluminum foil and bake for 20 minutes. Uncover and bake for an additional 5-10 minutes. Enjoy!
Notes
- Because this is a keto meal and doesn’t contain any flour or thickening agents, the sauce will thin out a bit as it bakes. Therefore make sure to remove any excess liquid from the broccoli and mushrooms!
- You may use any type of cheese you prefer! Colby Jack cheese or pepper Jack cheese are excellent options!
- Want to make it spicy? Add a generous amount of red crushed pepper and a pinch of cayenne pepper.
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
