Name: Cheesy Tuna Mornay Recipe
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: Australian-inspired
Ingredients: 2 tbsp butter; 2 tbsp all-purpose flour; 2 cups milk; 1 cup grated cheddar cheese; ½ cup grated Parmesan cheese; 1 tbsp Dijon mustard; 2 cans (6 oz each) tuna, drained; 1 cup frozen peas; 3 cups cooked pasta (such as penne or macaroni); Salt and pepper, to taste; ½ cup breadcrumbs (optional, for topping); 2 tbsp chopped parsley (optional, for garnish)

There’s nothing quite like the creamy, cheesy goodness of a classic Cheesy Tuna Mornay to bring a sense of nostalgia to your dinner table. With its rich sauce, tender pasta, and savory tuna, this dish is a family favorite that never goes out of style.

I first fell in love with Tuna Mornay during childhood. My mom would whip it up on busy weeknights, and the comforting aroma of the bubbling cheese topping always brought everyone straight to the table. Now, it’s a go-to recipe in my own home, perfect for both quick dinners and comforting leftovers.

Let’s dive into why this dish deserves a spot in your recipe rotation!

Why You’ll Love This Cheesy Tuna Mornay

If you’re looking for a simple, satisfying meal that the whole family will enjoy, this Cheesy Tuna Mornay ticks all the boxes.

First, it’s incredibly easy to make. With just a few pantry staples, you can create a filling, flavorful dinner in under an hour.

It’s also a budget-friendly option. Tuna and pasta are affordable ingredients, making this dish a fantastic way to feed a crowd without breaking the bank.

The comfort factor is unmatched. Creamy béchamel sauce, chunks of tuna, and golden melted cheese come together in a harmony of flavors and textures that’s pure bliss.

Finally, it’s versatile and customizable. Add veggies, swap cheeses, or even use gluten-free pasta to make it your own.

Ready to get started? Let’s talk about the key ingredients that make this dish a standout.

Ingredients Notes

The beauty of this Cheesy Tuna Mornay lies in its simple yet flavorful ingredients. Here’s what you’ll need:

Canned Tuna: Opt for high-quality tuna packed in spring water or olive oil. It should be drained well to avoid a watery sauce.
Pasta: Medium-sized shapes like penne, fusilli, or macaroni work best as they hold onto the creamy sauce beautifully.
Cheese: A mix of cheddar and parmesan gives the dish its rich, cheesy flavor. Freshly grated cheese melts better and adds a gourmet touch.
Milk: Whole milk is ideal for creating a creamy béchamel sauce, but you can use reduced-fat milk if preferred.
Butter and Flour: These are the base for the béchamel sauce, creating a roux that thickens the dish.
Onion: A finely chopped onion adds depth and a subtle sweetness to the sauce.
Breadcrumbs: A light sprinkle of breadcrumbs on top creates a crispy, golden topping that contrasts beautifully with the creamy filling.

Optional ingredients like peas, corn, or sautéed mushrooms can be added for extra flavor and texture. You’ll also need a baking dish and a whisk for the sauce.

How to Make Cheesy Tuna Mornay

Making Cheesy Tuna Mornay is a straightforward process. Let’s break it down step by step:

1. Cook the Pasta

Start by bringing a large pot of salted water to a boil. Cook your pasta according to the package instructions until al dente, then drain and set aside.

2. Prepare the Béchamel Sauce

In a medium saucepan, melt butter over medium heat. Add the flour and whisk constantly for 1–2 minutes until the mixture is smooth and golden. Gradually pour in the milk, whisking continuously to avoid lumps.

Once the sauce has thickened, stir in half of the cheddar and all of the parmesan until melted and smooth. Season with salt and pepper to taste.

3. Combine the Ingredients

In a large mixing bowl, combine the cooked pasta, canned tuna, and béchamel sauce. Stir gently until everything is evenly coated. If you’re adding vegetables, fold them in at this stage.

4. Assemble and Bake

Preheat your oven to 375°F (190°C). Pour the tuna mixture into a greased baking dish, spreading it out evenly. Sprinkle the remaining cheddar cheese and a layer of breadcrumbs on top.

Bake for 20–25 minutes or until the top is golden and bubbly. For an extra crispy finish, broil for 2–3 minutes at the end.

5. Serve and Enjoy

Let the dish cool for 5 minutes before serving. Pair it with a fresh side salad or steamed vegetables for a complete meal.

Storage Options

Leftover Cheesy Tuna Mornay is just as delicious the next day. Here’s how to store and reheat it:

Refrigerator: Transfer leftovers to an airtight container and refrigerate for up to 3 days.
Freezer: For longer storage, portion the casserole into freezer-safe containers. It will keep for up to 3 months. Thaw in the fridge overnight before reheating.
Reheating: Warm individual portions in the microwave or bake in the oven at 350°F until heated through. If reheating in the oven, cover the dish with foil to prevent drying out.

Variations and Substitutions

This classic recipe is wonderfully flexible. Here are some ideas to make it your own:

Vegetables: Add frozen peas, sautéed mushrooms, or steamed broccoli for added nutrition.
Cheese Swap: Try gruyère, mozzarella, or even a sharp blue cheese for a unique twist.
Gluten-Free: Use gluten-free pasta and a gluten-free flour blend to make the dish gluten-free.
Herbs and Spices: Add a pinch of nutmeg to the béchamel or sprinkle fresh parsley on top before serving for extra flavor.
Protein Variations: Substitute tuna with cooked shredded chicken or salmon for a different take on this classic casserole.

With its creamy sauce, savory tuna, and golden cheesy crust, Cheesy Tuna Mornay is a dish that feels like a warm hug in food form. Make it once, and it’s sure to become a regular on your menu – a comforting, budget-friendly meal that’s as versatile as it is delicious!