Creamy Tuna Mornay Pasta Bake Recipe
Introduction
This Tuna Mornay is a creamy and comforting pasta bake, perfect for a satisfying weeknight dinner. Combining tender pasta, a rich white sauce, and flaky tuna, it’s topped with a crispy golden breadcrumb crust. It’s an easy dish that brings warmth and flavor to the table.

Ingredients
- 350g (12oz) penne pasta (or other short pasta)
- 40g (3 tbsp) butter
- 3 garlic cloves, finely minced
- 4 tbsp (50g) plain/all purpose flour
- 4 cups (1 litre) milk (any fat %, dairy or non-dairy)
- 2 tsp Vegeta, or chicken or vegetable stock powder/granulated bouillon
- 1/2 cup (50g) parmesan, finely shredded
- 1/2 tsp each mustard powder, onion powder, and garlic powder
- 425g (15oz) canned tuna, preferably in oil, drained (substitute with salmon if desired)
- 400g (14oz) canned corn, drained (or other vegetables)
- 25g (1.5 tbsp) butter, melted
- 1/2 cup (60g) panko breadcrumbs
- 1/4 cup (25g) parmesan, finely grated
- 1/4 tsp salt
- Chives or parsley, optional garnish
Instructions
- Step 1: Preheat your oven to 180°C (350°F).
- Step 2: Prepare the crunchy topping by mixing the melted butter, panko breadcrumbs, grated parmesan, and salt together. Set aside.
- Step 3: Cook the pasta according to package instructions but reduce the cooking time by 1 minute. Drain and let it cool slightly, then return the pasta to the pot.
- Step 4: To make the white sauce, melt 40g butter in a large pot over medium heat. Add the minced garlic and cook for 30 seconds until fragrant.
- Step 5: Stir in the flour and mix with the butter. While whisking continuously, gradually pour in about one-third of the milk. Once it is combined, add the remaining milk, continuing to whisk.
- Step 6: Add the Vegeta or stock powder, mustard powder, onion powder, and garlic powder, then whisk to combine.
- Step 7: As the milk heats, whisk constantly to prevent the sauce from sticking to the bottom of the pot.
- Step 8: After 4 to 5 minutes, the sauce should thicken enough to coat the back of a spoon. Remove from heat and stir in the finely shredded parmesan.
- Step 9: Add the drained tuna to the pasta, gently flaking it into large chunks with a fork. Stir in the corn and pour over the white sauce, mixing carefully to combine.
- Step 10: Transfer the mixture into a baking dish and evenly sprinkle the crunchy topping over the surface.
- Step 11: Bake in the preheated oven for 25 minutes until the topping is golden and the edges are bubbling. Garnish with chives or parsley if desired before serving.
Tips & Variations
- For extra flavor, substitute part of the milk with cream or add a splash of white wine to the sauce.
- Try using different vegetables like peas, spinach, or mushrooms instead of corn to vary the dish.
- If you prefer a gluten-free version, substitute the flour and pasta with gluten-free alternatives and use gluten-free breadcrumbs.
- Use fresh herbs like dill or tarragon along with chives for a different aroma and taste.
Storage
Store any leftovers in an airtight container in the refrigerator for up to 3 days. Reheat in the oven at 180°C (350°F) until warmed through to retain the crunchy topping, or microwave for convenience but the topping may soften.
How to Serve

Serve this delicious recipe with your favorite sides.
FAQs
Can I use fresh tuna instead of canned tuna?
Yes, you can use fresh tuna, but it should be cooked and cooled before adding. Canned tuna adds convenience and moisture, so fresh tuna might change the texture slightly.
What can I substitute for panko breadcrumbs?
If you don’t have panko, regular breadcrumbs or crushed crackers can be used for the topping. For a gluten-free option, use gluten-free breadcrumbs or crushed nuts for extra crunch.
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Creamy Tuna Mornay Pasta Bake Recipe
- Total Time: 50 minutes
- Yield: 6 servings 1x
Description
This Tuna Mornay recipe is a creamy, comforting casserole pasta bake featuring tender penne pasta combined with a rich white sauce, flaked tuna, and sweet corn. Topped with a crunchy blend of panko breadcrumbs and parmesan, it’s baked until golden and bubbling, making for a perfect hearty meal that’s easy to prepare and deliciously satisfying.
Ingredients
Pasta
- 350g / 12oz penne pasta (or other short pasta)
White Sauce
- 40g / 3 tbsp butter
- 3 garlic cloves, finely minced
- 4 tbsp (50g) plain/all purpose flour
- 4 cups (1 litre) milk (any fat %, dairy or non dairy)
- 2 tsp Vegeta, or chicken or vegetable stock powder/granulated bouillon
- 1/2 tsp mustard powder
- 1/2 tsp onion powder
- 1/2 tsp garlic powder
- 1/2 cup (50g) parmesan, finely shredded
Filling
- 425g / 15 oz canned tuna, preferably in oil, drained (substitute salmon if desired)
- 400g / 14 oz canned corn, drained (or other vegetables)
Topping
- 25g / 1.5 tbsp butter, melted
- 1/2 cup (60g) panko breadcrumbs
- 1/4 cup (25g) parmesan, finely grated
- 1/4 tsp salt
Garnish (Optional)
- Chives or parsley
Instructions
- Preheat the Oven: Set your oven to 180°C/350°F to warm up while you prepare the pasta bake.
- Prepare the Crunchy Topping: In a small bowl, mix together the melted butter, panko breadcrumbs, grated parmesan, and salt until evenly combined. Set aside for the topping.
- Cook Pasta: Boil the penne pasta according to the package instructions but reduce the cooking time by one minute to keep it slightly firm. Drain the pasta, allow it to cool slightly, then return it to the cooking pot.
- Make White Sauce Base: In a large pot over medium heat, melt the butter and add the finely minced garlic. Cook the garlic for about 30 seconds until fragrant but not browned.
- Incorporate Flour: Add the flour to the melted butter and garlic mixture, stirring continuously to form a roux. Gradually pour in about one-third of the milk while whisking to avoid lumps. Once blended, add the remaining milk and whisk thoroughly.
- Season Sauce: Stir in the Vegeta (or chosen stock powder), mustard powder, onion powder, and garlic powder. Continue whisking as the milk heats.
- Thicken Sauce: Keep whisking the sauce for 4-5 minutes as it heats to prevent sticking and ensure a smooth consistency. When thick enough to coat the back of a spoon, remove from heat and stir in the shredded parmesan until melted and well incorporated.
- Assemble Filling: Add the drained tuna to the pasta and gently flake it into large chunks with a fork. Mix in the drained corn and pour the prepared white sauce over the pasta mixture. Stir gently to combine without breaking up the tuna too much.
- Transfer and Top: Scrape the combined mixture into a baking dish. Evenly sprinkle the crunchy topping mixture over the top.
- Bake: Place the dish in the preheated oven and bake for 25 minutes, or until the topping is golden brown and the edges are bubbling.
- Garnish and Serve: Remove from the oven and optionally sprinkle with chopped chives or parsley before serving hot for a comforting and creamy tuna mornay pasta bake.
Notes
- You can substitute canned salmon for the tuna if preferred.
- Feel free to swap canned corn for other vegetables like peas or diced carrots to vary the flavor.
- Using panko breadcrumbs in the topping gives a lighter, crunchier crust compared to regular breadcrumbs.
- This recipe can be made with any type of milk, including non-dairy alternatives, to suit dietary preferences.
- To keep the tuna chunks in large pieces, stir gently and avoid over-mixing the filling.
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Category: Casserole
- Method: Baking
- Cuisine: Western
Keywords: tuna mornay, creamy tuna pasta bake, tuna casserole, baked pasta, tuna pasta recipe, comfort food, easy casserole

