Keto Tuna Casserole {Ready in About 20 Minutes!}

This Keto Tuna Casserole is comforting, warming, and so easy to make. It’s tuna noodle style with the help of keto noodles and is ready in just over 20 minutes!

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This Keto Tuna Noodle Casserole will remind you of classic tuna noodle casserole with only a fraction of the carbs! Thanks to keto noodles, it really does have a noodle base just like the original. The noodles and tuna are tossed in a creamy, cheesy sauce alongside just a small amount of peas and carrots – not enough to boost the carb count, but just enough to give it that classic tuna noodle casserole flavor.

Keto Dinner recipes are some of the most important recipes you can add to your keto meals. Whether it is keto soup, keto pizza, or keto casserole recipes, the right recipes can make all the difference. At Forget Sugar we strive on making easy keto recipes that can be made often and are delicious!

Keto Tuna Casserole

…and why you’ll love it!

• It’s ready in just over 20 minutes, perfect for those busy weeknights.
• It may be a keto recipe, but it has all the flavors of classic tuna noodle casserole.
• Each serving is packed with 17g protein.
• It’s super low-carb with only 3g net carbs per serving!

Ingredients Needed to Make This Easy Low Carb Tuna Casserole

Ingredient quantities for this low carb tuna casserole recipe are located in the recipe card at the end of the post.

• Olive oil
• Carrots
• Almond flour
• Unsweetened almond milk
• Heavy whipping cream
• Dijon mustard
• Garlic powder
• Salt and pepper
• Cayenne pepper (optional)
• Cream cheese
• Frozen peas
• Canned tuna
• Fettuccine shirataki noodles
• Shredded Parmesan cheese
• Pork rinds

How to Make Gluten Free Tuna Casserole {Quick Overview}

This is just a quick overview of some of the steps involved in making the gluten free tuna casserole with noodles. For the recipe in detail, including exact measurements used at each step, scroll to the recipe card at the end of the post.

In a large skillet, cook carrots in olive oil, then add almond flour.

Then add almond milk, heavy whipping cream, Dijon, garlic powder, salt, pepper, and cayenne pepper. Add to skillet, stirring constantly. Add cream cheese and melt into mixture. Cook until mixture thickens slightly.

Add peas, tuna, noodles, and 1/2 cup of the Parmesan cheese.

TIP: Rinse, rinse, rinse those shirataki noodles! They’re a bit stinky when you initially remove them from the package, so you need to rinse until they have little to no odor.

Stir to combine, then add to a casserole dish and top with remaining Parmesan cheese and finely crushed pork rinds. Bake for 10 minutes until you get…

this!

Where to Buy Fettucine Shirataki Noodles

You may be able to find the popular brand Miracle Noodle at your local grocery or health food store. Or, you can buy it on Amazon:

Miracle Noodle Shirataki Noodles

I personally buy the Wonder Noodles brand, which you can get at an awesome price via Thrive Market (it’s their in-house brand). Thrive Market is pretty much like the Costco of high-quality natural foods! Get a MASSIVE discount by using the links below — you’ll get up to a $24 free gift on your first order (which makes their already super low prices even lower!). I’ve been using Thrive Market for over two years and am a HUGE huge fan!

Get net carb-free Wonder Noodles at an awesome price!

Or, you can read my full Thrive Market review here!

If you pick up some extra bags of shirataki noodles, you’ll want to use them in my Keto Chicken Alfredo with Broccoli recipe too. Also, try our popular Keto Jalapeno Popper Chicken Casserole.

More Keto Side Dishes

Serve this dish with some of these keto side dishes:

• This simple keto green beans recipe provides you with an easy and delicious companion dish with your tuna casserole.
• Cauli Mash Keto Make cauliflower mashed potatoes keto-friendly as your permanent replacement for high carb potatoes.
• You can make healthy antipasto salad keto-friendly by following our delicious recipe! Also, if you want light and creamy make keto cucumber salad.
• Try one of our best keto radish recipes and top it with homemade keto ranch dressing.
• Learn how to make keto French fries by using this secret vegetable that tastes almost identical to regular fries!
• Make low carb roasted vegetables using our delicious recipe that you will make all the time!

Can I Eat Tuna Casserole on the Keto Diet?

You can eat tuna casserole on the keto diet by making a low carb or keto-friendly recipe. Traditional tuna casserole may have heavy carb egg noodles, potato chips, cream of mushroom soup, and breadcrumbs, and all must be avoided on the keto diet. You must use healthy low carb substitutes when you make a tuna casserole on the keto diet.

How Do I Make Tuna Casserole Keto-Friendly?

Tuna casserole can be made keto-friendly by using low carb substitutes for the heavy carb ingredients. Instead of using egg noodles you can use low carb shirataki noodles, and instead of using potato chips or bread crumbs you can use crushed pork rinds. With each substitute you make your tuna casserole becomes healthier for you on a low carb diet and on the keto diet.

Nutrition Facts for Easy Keto Tuna Bake

Per serving:

• 300 calories
• 24g fat
• 17g protein
• 3g net carbs

More Keto Casserole Recipes

Try more of our delicious and easy to make low carb casserole recipes the whole family will enjoy!

• Learn how to make keto cauliflower mac and cheese by using this amazing vegetable as a substitute for the macaroni noodles!
• You can make cheeseburger casserole keto-friendly by following this easy recipe.
• You can eat pizza on the keto diet. And you can take it a step further and make this low carb pizza casserole dish with its amazing crust!
• Make keto chicken and broccoli casserole for the whole family.
• Learn how to make keto ground beef recipes and start with this keto ground beef casserole!
• For parties and gathering, and even as a keto Super Bowl food, make low carb taco casserole that will be the first dish gone!

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Keto Tuna Casserole

This Keto Tuna Casserole is comforting, warming, and so easy to make. It's tuna noodle style with the help of keto noodles and is ready in just over 20 minutes!

5 from 7 votes

Print Pin Rate

Course: Dinner, Lunch, Main Course

Cuisine: American, Western

Keyword: keto tuna bake, low carb tuna casserole

Prep Time: 5 minutes minutes

Cook Time: 18 minutes minutes

Total Time: 23 minutes minutes

Servings: 6

Calories: 300kcal

Ingredients

• 2 tbsp olive oil
• 1/4 cup diced carrots
• 2 tbsp almond flour
• 3/4 cup unsweetened almond milk
• 1/2 cup heavy whipping cream
• 2 tbsp Dijon mustard
• 1/2 tsp garlic powder
• 1 tsp salt
• 1/2 tsp pepper
• 1/8 tsp cayenne pepper optional
• 4 oz cream cheese
• 1/4 cup frozen peas
• 2 5-oz cans tuna fish
• 2 7-oz packages fettuccine shirataki noodles drained and thoroughly rinsed
• 3/4 cup shredded Parmesan cheese divided
• 1/4 cup finely crushed pork rinds

Cook ModePrevent your screen from going dark

Instructions

• Preheat oven to 425 F.
• Heat oil in a large nonstick skillet over medium-high heat. Adds carrots and cook for 3 minutes. Add almond flour, stirring to combine. Cook for an extra 1-2 minutes.
• Combine almond milk, heavy whipping cream, Dijon, garlic powder, salt, pepper, and cayenne pepper. Add to skillet, stirring constantly. Add cream cheese and melt into mixture. Cook until mixture thickens slightly.
• Add peas, tuna, noodles, and 1/2 cup Parmesan cheese. Stir well to combine.
• Transfer mixture to a casserole dish. Top with remaining 1/4 cup Parmesan cheese and pork rinds.
• Bake at 425 F for 10 minutes or until mixture is bubbly and pork rinds are golden.

Notes

Keto Casseroles

Other people who made this recipes also made some of these keto casserole recipes:

• Keto Meatball Casserole
• Keto Deep Dish Pizza Casserole
• Keto Teriyaki Casserole
• Cauliflower Cheese Casserole

Nutrition Facts

Keto Tuna Casserole

Amount Per Serving

Calories 300 Calories from Fat 216

% Daily Value*

Fat 24g37%

Saturated Fat 11g69%

Cholesterol 75mg25%

Sodium 896mg39%

Potassium 176mg5%

Carbohydrates 4g1%

Fiber 1g4%

Sugar 1g1%

Protein 17g34%

Vitamin A 1624IU32%

Vitamin C 3mg4%

Calcium 235mg24%

Iron 1mg6%

* Percent Daily Values are based on a 2000 calorie diet.

Nutrition Disclaimer

Nutrition facts are included as a courtesy only. They are accurate to the best of our knowledge based on the ingredients and brands used, but their accuracy is not guaranteed. If applicable, sugar alcohols have already been removed from the total carb count.

More Keto Family Meals

Try any one of these low carb family meals that everyone will enjoy!