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    Home / Keto Brussels Sprouts Casserole Recipe 🥘

    Keto Brussels Sprouts Casserole Recipe 🥘

    Feyza Kırmacı
    by Feyza Kırmacı
    Updated: Dec 26,2023
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    Looking for a tasty way to enjoy Brussels sprouts? Try our Keto Brussels Sprouts Casserole! It combines these nutritious veggies with delicious cheese for an easy-to-make, low-carb dish. So tasty, it's sure to win over even those usually hesitant about Brussels sprouts. Give this recipe a go - it could become a new favorite!

    Cheesy Brussels sprouts served on a plate.
    Jump to:
    • Preparation and cooking overview
    • Chef's note
    • 🥘 Ingredients for this Brussels sprouts casserole recipe
    • Ingredient substitutions
    • Additional ingredients
    • Cooking tools required
    • How to make Brussels Sprouts Casserole: step-by-step guide
    • Cooking methods
    • Preparation steps
    • Cooking instructions
    • What to serve with Brussels sprouts casserole?
    • How to make it healthier?
    • Time-saving tips
    • What can I prepare ahead of time?
    • Storage and reheating instructions
    • Recipe wrap-up and conclusion
    • Frequently asked questions
    • 📖 Recipe

    Preparation and cooking overview

    Got 40 minutes? That's all you need for this tasty side dish. First, give the Brussels sprouts a good roast. Next, cover them with a mix of Parmesan and mozzarella cheese. Bake them one more time, and you've got a cozy and delicious treat ready to go!

    Chef's note

    Want to switch things up? Go ahead! Use fresh Brussels sprouts instead of frozen - just trim, cut in half, and blanch for about 5 minutes. Play around with the seasonings, pick a different cheese, or add your own twist. Want some kick? Add a pinch of red pepper flakes. For a fresh vibe, toss in a little lemon zest.

    If you're a fan of this casserole dish, you're in for a treat! We have a selection of tasty casserole recipes just waiting for you to try them out.

    • Prep Time: 10 minutes
    • Cooking Time: 27 minutes
    • Total Time: 37 Minutes
    • Difficulty Level: Easy
    • Recipe Makes 4 Servings

    For more inspiration check out our Casseroles recipe.

    🥘 Ingredients for this Brussels sprouts casserole recipe

    To prepare this cheesy Brussels sprouts casserole, you'll need the following ingredients:

    • 1 pound frozen Brussels sprouts, halved
    • 2 tablespoons olive oil
    • Sea salt and freshly cracked black pepper to taste
    • ½ cup shredded mozzarella cheese
    • ¼ cup grated Parmesan cheese
    • ¼ teaspoon garlic powder
    • ¼ teaspoon onion powder
    • ¼ teaspoon paprika
    All the ingredients required to make cheesy keto Brussels sprouts are gathered and arranged on the table.

    Ingredient substitutions

    Not a fan of some items on the ingredient list? No worries, we've got alternatives for you:

    • Cheese: If you prefer a different type of cheese, substitute the mozzarella and Parmesan for cheddar or Swiss cheese.
    • Olive oil: Swap olive oil with an equal amount of avocado oil.
    • Paprika: For a bit of heat, substitute paprika with cayenne pepper.

    Additional ingredients

    Elevate the flavor profile of your roasted Brussels sprouts casserole with these additional ingredients:

    • Bacon bits: Add cooked bacon bits to the cheese blend for added texture.
    • Sliced almonds: Sprinkle some sliced almonds on top of the Brussels sprouts before the final bake.
    • Dried oregano or basil: Mix dried oregano or basil in the cheese blend for a herbal note.
    • Chopped jalapeños: Add some chopped jalapenos to the cheese mixture if you like a fiery kick.
    • Ground sausage: If you want to add some meat, cook some sausage until it's browned and sprinkle it over the Brussels sprouts before you add the cheese blend.
    Cheesy keto Brussels sprouts in a glass baking dish.

    Cooking tools required

    To make this easy Brussels sprouts casserole recipe, you'll need the following tools:

    • Measuring spoons and cups
    • Knife
    • Cutting board
    • Baking dish or Casserole dish
    • Mixing bowl
    • Spatula

    How to make Brussels Sprouts Casserole: step-by-step guide

    Cooking methods

    • Roasting

    Preparation steps

    1. Gather and measure all the ingredients.
    2. Grate Parmesan cheese in a mixing bowl and set aside.
    3. Remove the tough ends from the Brussels sprouts and slice them in half down the middle.

    Cooking instructions

    1. Preheat your oven to 400°F (200°C).
    2. Spread the Brussels sprouts in a single layer on a baking dish and toss them with olive oil, sea salt, and black pepper.
    3. Place the dish in the preheated oven and roast for 15-20 minutes until they're half tender and slightly charred.
    4. Meanwhile, mix the shredded mozzarella cheese, grated Parmesan cheese, garlic powder, onion powder, and paprika in a small bowl.
    5. Once the Brussels sprouts are roasted, remove them from the oven.
    6. Sprinkle the cheese mixture evenly over the Brussels sprouts.
    7. Return the baking dish to the oven and bake for an additional 5-7 minutes, or until the cheese is melted and bubbly and the Brussels sprouts are nicely browned.
    An empty baking dish alongside a bowl of halved Brussels sprouts and olive oil.
    Halved Brussels sprouts tossed with olive oil and seasoning in a baking dish.
    A glass mixing bowl alongside mozzarella cheese, grated Parmesan, and spices in separate bowls.
    Cheeses and spices mixed in a glass bowl.
    Roasted Brussels sprouts in a baking dish beside a bowl of cheese and spice mixture.
    Topping the Brussels sprouts with the cheese mixture.
    Baking dish with roasted Brussels sprouts topped with cheese ready to be baked.
    Two hands holding a hot Brussels sprouts casserole in a baking dish just out of the oven.
    Cheesy keto Brussels sprouts casserole served on a dark grey plate.
    An empty baking dish alongside a bowl of halved Brussels sprouts and olive oil.
    Halved Brussels sprouts tossed with olive oil and seasoning in a baking dish.
    A glass mixing bowl alongside mozzarella cheese, grated Parmesan, and spices in separate bowls.
    Cheeses and spices mixed in a glass bowl.
    Roasted Brussels sprouts in a baking dish beside a bowl of cheese and spice mixture.
    Topping the Brussels sprouts with the cheese mixture.
    Baking dish with roasted Brussels sprouts topped with cheese ready to be baked.
    Two hands holding a hot Brussels sprouts casserole in a baking dish just out of the oven.
    Cheesy keto Brussels sprouts casserole served on a dark grey plate.

    Chef's pro tip

    Slice the Brussels sprouts down the middle for uniform cooking and a great char. Be careful not to roast them too long at first. Give one a taste after 15 minutes. If it's somewhat soft, pull them out right away. If not, give them a few more minutes to cook.

    What to serve with Brussels sprouts casserole?

    The cheesy Brussels sprouts casserole is the perfect side dish recipe that pairs well with a number of meals. Here are some ideas:

    • Grilled Chicken: This casserole and a juicy grilled chicken are a match made in heaven. Their flavors mesh wonderfully.
    • Steak: Serve these cheesy Brussels sprouts with a classic steak. You can try our Pepper Steak and Chuck Eye Steak recipes.
    • Broiled Salmon: A crispy salmon seasoned with a zesty lemon-herb marinade will be a great addition to this veggie casserole.
    Keto-friendly Brussels sprouts casserole served on a plate.

    How to make it healthier?

    • To keep your sodium intake in check, opt for low-sodium cheese and use less salt when seasoning the Brussels sprouts.

    Time-saving tips

    • Grab pre-shredded mozzarella and grated Parmesan from the store. No need to grate at home!
    • Some stores have Brussels sprouts that are already cut and cleaned. Pick these to make things faster.
    Homemade keto Brussels sprouts casserole served on a dark grey plate.

    What can I prepare ahead of time?

    • Trim and halve the Brussels sprouts beforehand, then store them in an airtight container in the fridge.

    Storage and reheating instructions

    Storage instructions

    • Refrigerate: Store any leftover casserole in an airtight container and place it in the refrigerator. It'll stay good for up to 2-3 days.

    Best reheating practices

    • Oven or toaster oven: Preheat your oven to 350°F (180°C). Place the casserole in an oven-safe dish and bake for 10-15 minutes or until heated.
    Low-carb keto Brussels sprouts casserole served on a plate with a fork and a knife.
    Cheesy Brussels sprouts on a plate alongside a wooden board where a block of cheese is getting grated.
    Cheesy keto Brussels sprouts served on a plate with a fork and a knife.
    Low-carb keto Brussels sprouts casserole served on a plate with a fork and a knife.
    Cheesy Brussels sprouts on a plate alongside a wooden board where a block of cheese is getting grated.
    Cheesy keto Brussels sprouts served on a plate with a fork and a knife.

    Recipe wrap-up and conclusion

    Using just some cheese and a few spices, our Keto Brussels Sprouts Casserole transforms the humble Brussels sprouts into an excellent side dish. It's a hit, whether it's an everyday dinner, a family reunion, or a special holiday meal. When you serve this, expect everyone to want the recipe.

    Why wait? Dive into the delightful mix of melted cheese and crunchy Brussels sprouts. And if you're a Brussels sprouts fan, don't miss our Brussels Sprouts salad and Kung Pao Brussels Sprouts recipes.

    Do you know that we have more keto-friendly casserole recipes? Here are some of our favorites:

    • Loaded Keto Cauliflower Casserole
    • Keto Breakfast Casserole
    • Keto Zucchini Casserole
    • Keto Taco Casserole
    • Keto BBQ Chicken Casserole
    • Keto Cheesy Hashbrown Casserole
    Homemade keto Brussels sprouts casserole served on a plate.

    Frequently asked questions

    Brussels sprouts are packed with fiber, vitamins, and essential nutrients, and they're low in carbs. This makes them a great choice for the keto diet.

    The carb content in a Brussels sprouts casserole depends on the specific ingredients and serving size. Our recipe has around 8-10 grams of carbs per serving. That's why this is the best Brussels sprouts casserole.

    Absolutely! Fresh Brussels sprouts work well in this recipe. Simply trim, halve, and blanch them for about 5 minutes before following the recipe instructions.

    To add some heat to your cheesy Brussels sprouts, sprinkle a pinch of red pepper flakes over them before baking.

    📖 Recipe

    Cheesy keto Brussels sprouts casserole served on a plate with a fork.

    Cheesy Brussels Sprouts Casserole Recipe

    This 40-minute Keto Brussels Sprouts Casserole is a cheesy delight even sprout skeptics will love!
    No ratings yet
    Print Rate Pin Recipe
    Course: Side Dish
    Cuisine: American
    Keyword: keto casserole, low carb casserole recipe
    Prep Time: 10 minutes minutes
    Cook Time: 27 minutes minutes
    Total Time: 37 minutes minutes
    Servings: 4
    Calories: 49kcal

    Ingredients

    • 1 pound frozen Brussels sprouts halved
    • 2 tablespoons olive oil
    • Sea salt and freshly cracked black pepper to taste
    • ½ cup shredded mozzarella cheese
    • ¼ cup grated Parmesan cheese
    • ¼ teaspoon garlic powder
    • ¼ teaspoon onion powder
    • ¼ teaspoon paprika
    US Customary - Metric

    Instructions

    • Preheat your oven to 400°F (200°C).
    • Trim off hard ends from the Brussels sprouts and cut them in half lengthwise.
    • Spread the Brussels sprouts in a single layer on a baking dish and toss them with olive oil, sea salt, and black pepper.
    • Place the dish in the preheated oven and roast for 15-20 minutes until they are half tender and slightly charred.
    • Meanwhile, mix the shredded mozzarella cheese, grated Parmesan cheese, garlic powder, onion powder, and paprika in a small bowl.
    • Once the Brussels sprouts are done roasting, remove them from the oven.
    • Sprinkle the cheese mixture evenly over the Brussels sprouts.
    • Return the baking dish to the oven and bake for an additional 5-7 minutes, or until the cheese is melted and bubbly and the Brussels sprouts are nicely browned.

    Video

    Nutrition

    Nutrition Facts
    Cheesy Brussels Sprouts Casserole Recipe
    Amount Per Serving
    Calories 49 Calories from Fat 3
    % Daily Value*
    Fat 0.3g0%
    Saturated Fat 0.1g1%
    Polyunsaturated Fat 0.2g
    Monounsaturated Fat 0.03g
    Sodium 28mg1%
    Potassium 441mg13%
    Carbohydrates 10g3%
    Fiber 4g17%
    Sugar 2g2%
    Protein 4g8%
    Vitamin A 855IU17%
    Vitamin C 96mg116%
    Calcium 48mg5%
    Iron 2mg11%
    *

    Nutritional values are estimates only and do not include carbs from sugar alcohols.

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