Creamy And Delicious Tuna Mornay. A Classic Comfort Food Dish.
Tuna mornay is a classic and delicious dish perfect for a comforting meal any time of the day. This creamy and cheesy dish features tender chunks of tuna in a rich and flavorful sauce, with a crunchy breadcrumb topping that adds the perfect finishing touch.
Whether you’re a seasoned cook or a beginner in the kitchen, the easy-to-follow instructions and step-by-step video will guide you through making this delectable dish.

Tuna Mornay Bake
Ingredients
- 400g (14oz) - Macaroni Pasta
- 100g (3.5oz) - Unsalted Butter, Cubed
- 1 - Brown (Yellow) Onion, Fine Diced
- 2 - Garlic Cloves, Roughly Chopped
- 70g (2.4oz) - Plain (All-Purpose) Flour
- 420g (420ml) - Full Fat Milk, Warmed
- ¾ Cup (180ml) - Thickened Cream (Whipping Cream)
- 425g (14.9oz) - Canned Spring Water Tuna, Drained
- 1 - Lemon, Zest Only
- 50g (1.7oz) - Panko Bread Crumbs (Optional)
- 150g (5.3oz) - Matured Cheddar Cheese, Freshly Grated
- Seasoning To Taste
- Flat Leaf Parsley To Garnish, Roughly Chopped
Instructions
- Preheat oven to 180°C/350°F. Lightly grease a medium-sized baking dish.
- Place a saucepan or pot of water over a high heat and bring to a boil. Season with salt and cook the pasta for 3 minutes less than the instructions. Remove and drain.
- Add the butter to a large saucepan over medium-high heat, and let it melt. Add onion, garlic, and sauté for 2 minutes, mixing regularly or until the onion softens. Add the flour and mix well. Cook for 2 minutes or until thickened and starts to bubble. Don’t let it brown. Slowly add the warmed milk in batches mixing between each batch until the mixture has absorbed all the milk. Once mixed, add in the cream and cook for 1 minute. Check the seasoning and remove it from the stovetop.
- Add the drained pasta, tuna, and lemon zest to the sauce and mix well until combined. Transfer the mixture to the greased baking dish and spread evenly. Sprinkle with the Panko bread crumbs and cheese mixture evenly distributing the two, and bake in the oven for 30-35 minutes or until golden on top. Remove and allow to rest for 10 minutes before serving.
- Serve on plates or bowls, garnish with cracked black pepper and flat leaf parsley (optional). Dig in.
Nutrition Guide
The above nutrition guide is based on daily averages and is calculated for a single portion.
Recipe Notes
Tuna Mornay Bake Storage Instructions
Store the tuna mornay in an airtight container and place it in the refrigerator for up to 4 days.
To freeze the tuna mornay, ensure it has cooled down completely before transferring it to a freezer-safe container. It can be stored in the freezer for 3 months.
Tuna Mornay Bake Reheating Instructions
To reheat the tuna mornay, simply place it in a microwave-safe dish and microwave it on medium-high heat for 2-3 minutes or until hot in the centre.
Alternatively, you can reheat it in the oven by placing it in a baking dish and baking it at 180.c/350.f for 10-15 minutes or until hot in the centre.
Watch How To Make The Recipe
Did You Like This Recipe?
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#3 “Add the butter to a large saucepan over medium-high heat, add the butter and allow it to melt.” should eliminate the second “add the butter.”
#4 should start with “Add the drained tuna to the sauce and mix well.” You forgot to mention the tuna at all in the instructions.
The recipe was very good,
Oh, dear! Thank you for pointing that out. It’s all fixed now. Thank you
Just found you today. On the 18th of this month I will be 80 years old. That is the only add I will be giving that number. It seems to be correct as I’ve done and done again, the math. I am thrilled to find you and your astonishing recipes and the prep ahead meals that have helped you not only take pounds off but enjoy the process. My turn. Ready, set, go! Thanks.
Hello Katherine. I wish you a happy early birthday on the 18th. Thank you very much for your kind words, and glad you have been enjoying the recipes. Thank you.
This Tuna Mornay Bake recipe looks like the perfect comfort food, The combination of creamy sauce and tender tuna sounds absolutely delightful. I appreciate how you’ve laid out the steps so clearly, making it easy for anyone to follow. Can’t wait to try this dish—thanks for sharing.
It’s such a tasty dish. Always trying to make the recipes as easy as possible for everyone. Thank you