Why You’ll Love Keto Brussels Sprouts Casserole Recipe

I appreciate this recipe because it is simple to prepare and packed with flavor. I like that it works well as a main dish or a side, and I enjoy how the cheese, herbs, and savory protein turn Brussels sprouts into something hearty and satisfying.

Ingredients

(Note: All ingredient amounts are listed in the recipe card below.)

4 cups brussels sprouts halved
2 tbsp extra virgin olive oil
1 package smoked turkey strips cooked and chopped
1 cup heavy cream
2 large eggs beaten
1 tsp salt
1 ½ tsp pepper
1 ½ cup cheddar cheese shredded
1 sprig rosemary minced
1 tsp onion powder
1 tsp garlic powder
1 tsp paprika

Directions

I begin by preheating the oven to 400°F. I add the Brussels sprouts to a large bowl, drizzle them with olive oil, season with salt and pepper, and toss until evenly coated. I spread them evenly on a baking sheet and roast for 20 minutes.

I remove the Brussels sprouts from the oven, sprinkle the chopped smoked turkey strips over them, and set them aside.

In a large bowl, I mix together the eggs, heavy cream, shredded cheese, rosemary, onion powder, garlic powder, paprika, salt, and pepper until well combined.

I place the Brussels sprouts and smoked turkey strips into a 9×13 inch casserole dish and pour the egg mixture evenly over the top.

I bake the casserole uncovered at 350°F for 20 minutes, then serve it hot.

Servings and Timing

I make this casserole to serve 10 people. I plan for about 10 minutes of prep time, 40 minutes of cooking time, and a total time of around 50 minutes.

Variations

I sometimes swap cheddar cheese for mozzarella or a sharp white cheddar for a different flavor. I like adding mushrooms or diced onions for extra texture. When I want more richness, I mix in a bit of cream cheese with the egg mixture.

Storage/Reheating

I store leftovers in an airtight container in the refrigerator for up to four days. I reheat individual portions in the microwave or warm the entire casserole in the oven until heated through.

FAQs

Can I make this casserole ahead of time?

I often assemble it ahead of time, refrigerate it, and bake it just before serving.

Do I need to roast the Brussels sprouts first?

I roast them first because it adds flavor and prevents the casserole from becoming watery.

Can I use frozen Brussels sprouts?

I prefer fresh, but I use frozen if thawed and dried thoroughly.

Is this recipe freezer-friendly?

I freeze leftovers in portions, though the texture is best when fresh.

What kind of smoked turkey works best?

I like using a well-seasoned smoked turkey product for the best flavor.

Can I add more vegetables?

I enjoy adding cauliflower or broccoli for extra volume.

How do I know when it’s done?

I look for a set center and a lightly golden top.

Is this suitable as a main dish?

I often serve it as a main dish with a simple salad.

Can I reduce the seasoning?

I adjust the salt and spices to taste depending on how seasoned my smoked turkey is.

Can I make it spicier?

I sometimes add a pinch of chili flakes or cayenne for heat.

Conclusion

I enjoy making this keto Brussels sprouts casserole when I want a comforting, cheesy dish that still feels balanced and nourishing. I find that its bold flavors, creamy texture, and easy preparation make it a reliable recipe I come back to often.