Mouthwatering Keto Creamy Broccoli and Mushroom Casserole Recipe for a Healthy Meal

Welcome to Your New Favorite Keto Dish

Imagine a dish that perfectly aligns with your keto lifestyle while delivering a taste that reminds you of home-cooked comfort. That’s exactly what you get with our Keto Creamy Broccoli and Mushroom Casserole. This dish is a harmonious blend of tender broccoli and earthy mushrooms, all enveloped in a velvety sauce and topped with a golden, crunchy cheese crust. It’s the ideal low-carb, high-fat meal that doesn’t just satisfy your macros but also your cravings for something hearty and delicious.

As a keto dieter, finding recipes that provide both nutritional value and flavor can be a challenge. But with this casserole, you hit the jackpot. It’s packed with fiber, healthy fats, and protein, all while keeping the carb count low. Whether you’re looking for a comforting dinner or a dish to impress at your next potluck, this casserole is your ticket to a delicious and nutritious meal that aligns with your keto goals.

Keto Creamy Broccoli and Mushroom Casserole

The Story Behind the Casserole

There’s something undeniably comforting about a casserole. It’s a dish that’s been passed down through generations, finding its way into the heart of family dinners. This Keto Creamy Broccoli and Mushroom Casserole is no different. It’s inspired by the classic comfort food we all know and love, but with a keto twist to make it suitable for a low-carb lifestyle.

Broccoli and mushrooms are the stars of this dish, providing a wealth of nutritional benefits. Broccoli is a keto favorite, known for its high fiber content and abundance of vitamins C and K. Mushrooms, on the other hand, are low in carbs and a great source of B vitamins and selenium. When combined with the high-fat content from the heavy cream and cheeses, this casserole becomes a perfectly balanced keto meal.

The rich, creamy sauce is a testament to the versatility of keto cooking. By using heavy cream and cream cheese, we create a thick, indulgent base without the need for flour or cornstarch, which are common thickeners in traditional recipes but are high in carbs. The addition of garlic powder, onion powder, and paprika infuses the dish with depth and warmth, making each bite a delightful experience.

What makes this casserole truly special is its ability to be both indulgent and health-conscious. It’s a testament to the fact that following a keto diet doesn’t mean sacrificing flavor or comfort. This dish is a celebration of all the delicious possibilities within the keto framework, proving that you can have your casserole and eat it too!

Ingredients for Keto Creamy Broccoli and Mushroom Casserole

Perfecting the Casserole Method

Creating the perfect casserole is an art form, and with a few chef’s tips, you can elevate this dish from great to extraordinary. The key is in the details, and paying attention to each step will ensure a casserole that’s cooked to perfection.

**Start with blanching the broccoli**. This step is crucial for achieving the ideal texture. You want the broccoli to be bright green and slightly tender, not mushy. Blanching it for just 2-3 minutes before baking helps it retain its vibrant color and bite, which contrasts beautifully with the creamy sauce.

**Browning the mushrooms** is another step where technique matters. The goal is to sauté them until they’re nicely browned and have released their moisture. This concentrates their flavor and prevents the casserole from becoming watery. Remember to stir continuously when adding the cream and cheeses to the mushrooms. This will help you achieve a smooth, lump-free sauce that evenly coats the vegetables.

**Cheese distribution** is the final touch. By stirring in most of the cheddar cheese into the sauce and then sprinkling the rest on top along with the Parmesan, you create two layers of cheesy goodness. The inside becomes creamy and luscious, while the top gets that irresistible golden crust.

By following these steps and taking care with each one, you’ll craft a casserole that’s not only delicious but also visually appealing and texturally satisfying.

Keto Creamy Broccoli and Mushroom Casserole in the Oven

Variations to Keep It Fresh

Spicy Kick Casserole

For those who enjoy a bit of heat, adding a spicy element to this casserole can create a whole new flavor profile. Consider incorporating chopped jalapeños or a sprinkle of red pepper flakes into the sauce. The heat from the peppers will cut through the richness of the cream and cheese, providing a balanced and exciting taste experience.

Meat Lover’s Casserole

While this dish is vegetarian-friendly, it can easily be adapted for meat lovers. Adding cooked, crumbled bacon or diced chicken can boost the protein content and add a savory depth to the casserole. The smokiness of the bacon pairs particularly well with the earthiness of the mushrooms.

Crunchy Topping Casserole

If you’re missing the crunch that traditional casseroles often have from a breadcrumb topping, consider a keto-friendly alternative. Sprinkling crushed pork rinds or a mix of almond flour and grated Parmesan cheese on top before baking will give you that satisfying texture without the carbs.

Substitutions for Dietary Needs

**Dairy-Free Option**: For those who are dairy-sensitive, coconut cream can replace heavy cream, and there are several non-dairy cheese alternatives that melt well and can be used in place of the cheddar and Parmesan.

**Nut-Free Topping**: If nuts are a concern, skip the almond flour in the crunchy topping variation and use only pork rinds or opt for a sprinkle of hemp seeds for a nutty flavor without the allergens.

**Vegetable Variations**: Feel free to swap out the broccoli for cauliflower or a mix of your favorite keto-friendly vegetables. Just be sure to adjust the cooking time accordingly, as different vegetables may require more or less time to reach the desired tenderness.

Frequently Asked Questions

Can I make this casserole ahead of time? Yes, you can prepare the casserole up to a day in advance and store it, covered, in the refrigerator. When you’re ready to eat, bake it according to the instructions, adding a few extra minutes to the cooking time if necessary.

Is this casserole freezer-friendly? While you can freeze the casserole, the texture of the sauce may change upon reheating. For best results, it’s recommended to enjoy it fresh or stored in the refrigerator.

Can I use frozen broccoli? Yes, but make sure to thaw and drain it well to avoid excess moisture in the casserole. You may also want to reduce the blanching time since frozen broccoli is typically blanched before freezing.

How do I know when the casserole is done? The casserole is ready when the cheese is bubbly and golden brown. If you’re unsure, you can check the internal temperature with a thermometer; it should reach 165°F (74°C).

Can I add more protein to this dish? Absolutely! Feel free to mix in cooked chicken, bacon, or even shrimp to add more protein and make the casserole even more filling.

Keto Creamy Broccoli and Mushroom Casserole

Dive into the comforting embrace of this Keto Creamy Broccoli and Mushroom Casserole, a perfect low-carb, high-fat dish that brings together tender broccoli, earthy mushrooms, and a rich, velvety sauce topped with a golden, crunchy cheese crust.
No ratings yet
Prep Time 15 minutes
Cook Time 35 minutes
Total Time 50 minutes
Course Dinner
Cuisine American
Servings 6 people
Calories 385 kcal


  • 9x13 inch casserole dish
  • Large pot
  • Colander
  • Large skillet
  • Cheese grater


  • 1 pound fresh broccoli florets
  • 8 ounces fresh mushrooms, sliced
  • 1 tablespoon olive oil
  • 1 cup heavy cream
  • 4 ounces cream cheese, softened
  • 1 teaspoon garlic powder
  • 1 teaspoon onion powder
  • ½ teaspoon paprika
  • Salt and pepper to taste
  • 1 ½ cups shredded cheddar cheese, divided
  • ¼ cup grated Parmesan cheese


  • Preheat your oven to 350°F (175°C). Grease a 9x13 inch (23x33 cm) casserole dish with a bit of olive oil and set aside.
  • Bring a large pot of salted water to a boil. Add the broccoli florets and cook for 2-3 minutes until they are bright green and slightly tender. Drain well and set aside.
  • In a large skillet, heat the olive oil over medium heat. Add the sliced mushrooms and sauté until they're browned and their moisture has evaporated, about 5-7 minutes.
  • Lower the heat and add the heavy cream, cream cheese, garlic powder, onion powder, paprika, salt, and pepper to the skillet with the mushrooms. Stir continuously until the cream cheese has melted and the mixture is smooth.
  • Remove the skillet from the heat and stir in 1 cup of the shredded cheddar cheese until the mixture is well combined.
  • Arrange the drained broccoli in the prepared casserole dish. Pour the creamy mushroom mixture over the broccoli, ensuring it's spread evenly.
  • Sprinkle the remaining 1/2 cup of shredded cheddar cheese and the grated Parmesan cheese over the top of the casserole.
  • Bake in the preheated oven for 20-25 minutes, or until the cheese is bubbly and golden brown on top.
  • Let the casserole sit for a few minutes before serving to allow the sauce to thicken slightly.


For a touch of crunch, sprinkle some crushed pork rinds or almond flour on top before baking.
Feel free to add cooked chicken or bacon for added protein.
Store leftovers in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave before serving.
This dish can be made in advance and refrigerated overnight before baking, making it a convenient make-ahead meal.


Calories: 385kcalCarbohydrates: 8gProtein: 13gFat: 34gFiber: 3gNet Carbs: 5g
Keyword Creamy Keto Vegetable Dish, Keto Casserole, Low Carb Broccoli Mushroom Bake
Tried this recipe?Let us know how it was!

Leave a Comment

Recipe Rating