Keto tuna casserole is a low-carb, creamy, healthy, and easy dish to make. Whether you are on a Low-Carb, Keto, or Ketovore Diet, you can make different versions of this dish using the following recipes for dairy-free, veggie, 4-ingredient tuna casserole, and more. So, let’s get cooking!
Keto tuna casserole is naturally high in protein and essential omega-3 fatty acids, making it perfect for low-carb, high-fat diets like Keto, Ketovore, and Low-Carb.
You can mix it with low-carb vegetables and creamy, Keto-friendly binders, and it becomes a nutritious meal that keeps you full for hours.
It is also a budget-friendly or cost-effective dish. Canned tuna is affordable, stores well in the pantry, and enables you to make satisfying meals without using expensive products.
Even if you are meal planning or trying to make food for a family, tweaking the low-carb tuna casserole recipe can give you multiple variations with simple changes.
Learn More: 28-Day Keto Meal Plan + Plans Based on Your Caloric Needs
This is an alternative to the traditional tuna noodle casserole, with a lot fewer carbohydrates. This version uses cauliflower rice to keep things fluffy, creamy, and satisfying.
You can make 6 servings of this easy, healthy, and nutritious dish in just about 30 minutes using the following ingredients and instructions.
You can also use these free Carnivore Diet Recipes for more easy and nutritious low-carb and zero-carb meal ideas.
Calories: 395 kcal | Net Carbohydrates: 5 g | Protein: 31 g | Fat 27 g
Learn More: Carnivore Diet Bacon Cheeseburger Casserole with Heavy Cream
This variation has the chewy texture of noodles with small levels of carbohydrates, good for those on low-carb diets. Spiralized zucchini keeps it light and refreshing.
To make 4 servings, you need about 35 minutes in total (15 minutes for preparation and 20 minutes for cooking), and the ingredients and instructions below.
Calories: 355 kcal | Net Carbohydrates: 4 g | Protein: 28 g | Fat: 24 g
Learn More: Carnivore Diet Chicken Casserole for Lunch and Dinner
If you are sensitive to dairy products and cannot tolerate them or aim to avoid dairy on a Keto Diet, you can still enjoy a creamy, dairy-free Keto meal.
You can make 6 servings of this delicious and healthy dish in about half an hour, using only the following ingredients and instructions.
Calories: 320 kcal | Net Carbohydrates: 6 g | Protein: 29 g | Fat: 19 g
Learn More: Carnivore Diet Ground Pork and Beef Casserole
This 4-ingredient tuna casserole is very popular because it only includes 4 ingredients, and you can make 4 servings of it in about 20 minutes. It is a perfect choice if you need a quick, easy, and yummy meal.
Calories: 410 kcal | Net Carbs: 3 g | Protein: 24 g | Fat: 32 g
Learn More: Carnivore Breakfast Casserole With Ground Beef
You can tweak the above recipes and create your own version, based on your needs and the ingredients you like better. You just need to ensure the ingredients you choose are Keto-friendly or fall into your daily macro limits.
Some of the most common alternatives to the main ingredients of Keto Tuna Casserole are as follows:
For binders, cream cheese and heavy cream create thick, smooth sauces, while coconut cream is good for dairy-free versions.
If you want a lighter option, use Greek yogurt or sour cream. They are low in carbohydrates but less fatty.
Instead of noodles, you can use spiralized zucchini (aka zoodle), Shirataki noodles, Cauliflower rice, or Cabbage strips.
To replace the breadcrumbs that are used in classic tuna casseroles, you can use pork rinds, almond flour mixed with Parmesan, cheese crisp crumbles, or chopped walnuts or pecans.
Learn More: How to Make Smoked Ribeye Roast for Carnivore and Keto Diets
One of the best things to serve a Keto tuna casserole with is a simple mixed-greens salad with olive oil and lemon.
If you are craving something more filling, roasted broccoli, sautéed spinach, or garlic butter zucchini are good options.
If you want side dishes to make the meal more filling without increasing carbs or calories, add a keto bread like almond flour biscuits or fathead dough rolls. You can also use this fluffy Carnivore Cloud Bread.
For family dinners or gatherings, serve casseroles in individual ramekins. Not only does this look great, but it also makes portion control easier, which is especially helpful for beginners adjusting to Keto macros.
Keto tuna casserole is meal-prep friendly and is perfect for busy individuals. You can assemble the entire casserole ahead of time and refrigerate it for up to 48 hours before baking.
Cooked casserole stores well in meal prep containers. It lasts 4-5 days in the fridge and reheats easily in the microwave or oven. You can also add a sprinkle of cheese before warming to maintain creaminess.
You can also freeze the Keto tuna casserole for up to 3 months. For best results, thaw overnight and reheat at 350°F (175°C). Avoid freezing zucchini-noodle versions because they can get watery.
Learn More: 15 Keto Recipes: Dinner, Soup, Quick Bites, Snacks, Desserts
Find answers to the most frequently asked questions about Keto Tuna Casserole below.
Yes, if only made without pasta and high-carb fillers. Using low-carb vegetables, cheese, cream, or dairy-free alternatives keeps net carbs low.
Use zucchini noodles, cabbage strips, cauliflower rice, or shirataki noodles.
Most Keto tuna casseroles have 3-6g net carbs per serving, depending on ingredients.
Yes, you can use coconut cream, almond milk, and nutritional yeast.
Yes, they are like breadcrumbs, add crunch, and contain zero carbohydrates.
Yes, you can freeze it for up to 3 months. Thaw overnight and reheat at 350°F (175°C).
It is made with only tuna, a creamy binder (mayo or cream cheese), cheese, and a vegetable base like cauliflower.
