Tandoori Tuna Casserole

Last updated February 3, 2026 By Kelly Nardo | 2 Comments
This post contains affiliate links. Please read my policy page.
This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved!
Prep: 10 minutes
Cook: 35 minutes
Total Time: 45 minutes
Servings 2 -4
No ratings yet

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved!

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

Never Miss a Recipe!

Get new recipes like this delivered to your inbox.

Tuna casserole? I know what you are thinking, tuna fish in a casserole? But I promise you it’s a winner.

I’ve actually only made tuna casserole one time before testing out this recipe. It was for meal prep clients a few months ago. Not going to lie, it was good, but nothing that I really wanted to make again. But I really like the idea of how easy it was. So I put on my thinking cap on and brainstormed ways that I could make it better.

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

First off, it needed more flavor. And bringing the flavor is pretty easy when you are using Safe Catch tuna. If you follow me on Instagram and watch my stories, you know how often I eat their tuna. It just makes for the easiest protein packed lunch. And I’m obsessed with all the flavors. I love regular canned tuna, but the 6 flavor combos they have are a game changer. Bonus that it is the only brand of tuna to individually test every fish for mercury and their Elite line has the lowest mercury level of any brand!

It’s so good guys. I’m known to eat it straight up out of the can…

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

Anyways, back to the casserole!

This tandoori tuna casserole combines the tandoori flavored tuna (bonus for adding so much flavor to the casserole), a few veggies, eggs and coconut milk as a binder, and then a few more spices for some kick. It comes together in less than 10, and then you just throw it in the oven to bake. I was a little nervous on how Michael was going to react to this, but he liked it! He even had it for lunch the next day and said it was better cold. I thought it was good cold too haha! So if cold leftover food is your thing (which we like in our house), then keep that in mind.

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

This casserole makes for an easy weeknight dinner or a meal prep dish that you can have throughout the week. It packs protein and healthy fats to keep you full. I like to top it with some yogurt or avocado to cut the heat and add a creaminess to it. Pair it with some mixed greens or some carbs and you have the perfect weekday lunch!

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

If you make this recipe or anything from Eat the Gains, make sure to post it and tag me so I can see all of your creations!!

#eatthegains and @eatthegains on Instagram!

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains
No ratings yet

Tandoori Tuna Casserole

Author: Kelly
This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved!
Print Recipe Pin Recipe
Course: Main Course
Calories: 273kcal
Protein: 25g
Carbs: 18g
Fat: 11g
Prep Time: 10 minutes
Cook Time: 35 minutes
Total Time: 45 minutes
Servings: 2 -4

ingredients

instructions

  • Preheat the oven to 375 degrees Fahrenheit. Spray/grease an 8x6 baking dish (or similar size) with avocado oil and set aside.
  • Heat a large non-stick pan over medium heat. Add avocado and let it get hot, about 30 seconds. Once hot, add onion and carrots and sauté for 1-2 mins until softened. Add red pepper, cauliflower rice, 1 teaspoon garlic powder, 1/2 teaspoon coriander, 1/2 teaspoon cumin, and salt and pepper. Cook for another 3-4 minutes, stirring occasionally, until veggies are slightly softened, but still have some firmness.
  • Once mixture is done, remove from heat. Add tuna to the pan, including the juices from the can, and mix well.
  • In a medium size bowl whisk the eggs. Add coconut flour and whisk to make sure no clumps remain. Add coconut milk, remaining spices, and salt and pepper. Mix well.
  • Add tuna mixture to greased baking dish. Add egg mixture and mix until everything is thoroughly combined (I like to use a fork to make sure liquid mixture evenly distributes).
  • Bake for 30-35 minutes until browned and cooked through. Let cool for a few minutes and then top with optional toppings.
  • Enjoy!

Last Step! Please leave a review and rating letting us know how you liked this recipe! This helps our business thrive so we can continue providing free recipes and high-quality content for you.

nutrition

Nutrition Facts
Tandoori Tuna Casserole
Amount Per Serving (1 g)
Calories 273 Calories from Fat 99
% Daily Value*
Fat 11g17%
Carbohydrates 18g6%
Fiber 7g29%
Sugar 7g8%
Protein 25g50%
* Percent Daily Values are based on a 2000 calorie diet.
Tried this recipe?If you make this recipe or anything from Eat the Gains, leave a comment and rating to let people know how you liked it! Also, make sure to post it and tag me so I can see all of your creations!! @eatthegains and #eatthegains on Instagram!

This post is sponsored in partnership with Safe Catch Foods. All opinions expressed (as always) are my own. I only partner with brands I trust and personally recommend – thank you for your support in helping make Eat the Gains possible!

This post may contains affiliate links and I may make little bit of money if you click on and purchase the products that are linked. It doesn’t cost you any extra money. The compensation helps with expenses to keep ETG up and running. I truly appreciate your support!

This Tandoori Tuna Casserole packs the flavor and makes an easy and healthy weeknight or meal prep dish that is gluten free, paleo, and Whole30 approved! - Eat the Gains

Get My Guide On
How to Build a Balanced Plate

No recipe, no problem! Learn the key factors to build a balanced plate for sustainable eating and to fuel your body to support your activity, goals, and lifestyle.

Leave a Reply

Have a question or want to share how you liked the recipe? Share your feedback!

Recipe Rating




2 Comments

  1. Any thoughts on making this now that safe catch tandoori tuna is no longer sold?

    Think plain tuna and tandoori seasoning blend would work?

    Thanks! It used to be my favorite!!!

    1. I know, it’s such a bummer they discontinued those flavored lines. But yes, I think that would work just fine! I would mix the spice blend with the tuna first and adjust according to taste. Then follow the recipe as written. I hope that helps!