This gluten-free tuna mornay is one of my childhood favorite dishes. It is very simple and tastes absolutely amazing.
The final dish features a cheesy tuna flavor filling with a delicious topping. It is a great gluten-free casserole that will easily feed a crowd with very little effort.
The crunchy cheesy topping adds a much-needed crunch that so many mornays lack. I highly recommend you don’t skip this part of the dish as it’s amazing.
The dollops of fruit chutney add explosions of flavor to this dish. You will be amazed at how well it complements the rest of the flavors without being too overpowering.
Cooking for a Crowd
If you need to feed a crowd, this tuna mornay also goes well with rice or some pasta. I prefer it just by itself without any extras. However, without any extras, you will likely only feed six people from a single batch of this recipe.
I recommend cooking the pasta while the mornay is baking in the oven. Once the tuna mornay is ready, serve the pasta and spoon some mornay over the top. Also, don’t forget to use gluten-free pasta if you are cooking for people sensitive to gluten.
Rice is another super easy accompaniment that you can have with this dish. Much like the pasta, you can cook the rice while the mornay is baking in the oven.
There are plenty of other side dishes that you can make to go with tuna mornay. If you have any suggestions, be sure to let us know in the comments section towards the bottom of this page.
Making Changes to the Tuna Mornay
You can make some alterations to the recipe to make the dish more to your liking. However, I think it is great without any changes, so I don’t recommend playing around with the recipe too much.
If you want to add more vegetables to this casserole, something like mushrooms or celery will work well. If you are going to add either of these, I recommend adding them at the same time as the onion.
Adding frozen peas, baby spinach, or chopped broccoli into the mornay mixture are all great options. I would add these at the same time you add the corn and no more than 150g (5.3 oz).
You could add some cooked gluten-free pasta into the sauce mixture before putting it into the oven. This change will essentially change the recipe into a delicious tuna pasta bake casserole.
How Long Can You Safely Store Leftovers?
Any leftovers are worth keeping as they will keep for a few days in the fridge. The leftovers are great for a relaxed lunch or dinner, as all you need to do is reheat the food.
I don’t recommend freezing the tuna mornay, as dairy heavy foods don’t tend to freeze very well. If you do end up freezing it, be sure to let us know how it goes.
If you want to see how to make this gluten-free dinner recipe, then be sure to check out the video I have prepared below. It goes through all the steps to making this delicious tuna mornay.
Gluten-Free Tuna Mornay Recipe
Ingredients
- 60 g (2.1 oz) butter
- 1 onion, diced
- 1 tsp garlic, crushed
- 3 Tbsp gluten-free cornstarch (Amazon)
- 2 cups milk
- 1 tsp Dijon mustard
- 425 g (15 oz) can tuna, drained
- 310 g (10.9 oz) can corn kernels, drained
- 1 Tbsp lemon juice (Amazon)
- 1 cup grated mozzarella cheese
- 2 Tbsp fruit chutney
Topping
- 1 cup gluten-free cornflakes, slightly crushed (Amazon)
- 2 Tbsp parmesan cheese
- 40 g (1.4 oz) melted butter
Instructions
- Preheat an oven to 180°C (350°F).
- In a large saucepan over medium heat, melt the butter.
- Add the onion and garlic. Cook until onion is translucent.
- Add the cornstarch and a pinch of salt and pepper. Cook for 2-3 minutes.
- Lower the heat, add the milk and mustard.
- Bring to a simmer and stir until thickened.
- Stir in the tuna, corn, lemon juice and cheese.
- Place in a greased ovenproof casserole dish.
- Prepare the topping by mixing the melted butter, cornflakes, and Parmesan cheese.
- Dollop the fruit chutney across the top of the mornay. Lastly, sprinkle the topping over the top.
- Place into the preheated oven and cook until the topping is lightly browned. Roughly 15 minutes.
- Serve & Enjoy.
Recipe Tips
- If you find the sauce has thickened too much, then you can simply mix in some more milk. However, you may find the sauce will become runny after baking it in the oven.
- The topping is optional. However, I recommend making it, as it makes the dish much more delicious. If you don’t add the topping, you can skip the baking section.
- You can use cheddar cheese instead of the mozzarella cheese. Also, if you want it extra cheesy, you can add some extra cheese to the topping.
- Gluten-free cornflakes can be swapped for gluten-free breadcrumbs. Both will work great. If you really feel like experimenting, you can try crushed potato crisps.
- You can use either fresh or dried Parmesan for the topping.
Nutrition Information
The information above is an estimate generated by an online nutrition calculator.
Posted on , under Dinner, Gluten-Free.
More Gluten-Free Recipes
There are plenty more gluten-free recipes that are worth trying. We have lots of savory and sweet dishes that are easy to make.
A dessert that will go very well after this meal is the rich chocolate fudge cake. It’s gluten-free and has an incredible texture and taste. I absolutely love the cake and it’s always a hit whenever I serve it up at events.
For something savory, I highly recommend trying the curried sausages. Again, the recipe is gluten-free and is packed with flavor. It’s a personal favorite and great for feeding a very hungry crowd.
I hope you love this gluten-free tuna mornay recipe as much as I do. If you have any feedback or a variation you would love to share, please don’t hesitate to leave a comment below.
