Few dishes evoke the warmth of home quite like Cheesy Tuna Mornay. This creamy, cheesy, and comforting casserole is the perfect balance of savory tuna, tender pasta, and a velvety béchamel sauce. Topped with golden breadcrumbs and extra cheese, it’s a meal that delivers on flavor and nostalgia.

I first came across Tuna Mornay as a budget-friendly dinner option in my college days, and it quickly became a favorite. Over time, I’ve tweaked the recipe to create this cheesy version that’s always a hit with family and friends.

Let’s explore why this dish is a winner for weeknight dinners and special occasions alike!

Why You’ll Love This Cheesy Tuna Mornay

If you’re looking for a dish that’s quick, delicious, and versatile, Cheesy Tuna Mornay checks all the boxes. Here’s why you’ll love it:

Budget-Friendly: Made with pantry staples like canned tuna, pasta, and cheese, this dish is kind to your wallet without sacrificing flavor.
Kid-Approved: Even picky eaters will dive into this creamy casserole. The cheesy topping and mild flavors make it a hit with the whole family.
Perfect for Leftovers: Tuna Mornay tastes just as good the next day, making it ideal for meal prep or reheating for lunch.
Customizable: Add vegetables, swap cheeses, or experiment with seasonings to make this recipe your own.

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

Ingredients Notes

Each ingredient in Cheesy Tuna Mornay has a role in creating the ultimate comfort food. Here’s a closer look:

Canned Tuna: Opt for high-quality tuna packed in water or oil. The mild flavor pairs perfectly with the rich, cheesy sauce.
Pasta: Use a short pasta like penne, macaroni, or shells. These shapes hold the sauce well and ensure every bite is coated with creamy goodness.
Cheese: A mix of cheddar and parmesan gives this dish its cheesy depth. Cheddar adds creaminess, while parmesan provides a nutty finish.
Milk and Butter: These are the base of the béchamel sauce, creating a rich and silky texture.
Breadcrumbs: Sprinkled on top, breadcrumbs provide a crispy, golden crust that contrasts beautifully with the creamy filling.
Onions and Garlic: These aromatics enhance the flavor of the sauce, adding depth and a touch of sweetness.

You’ll also need flour for the béchamel, a casserole dish, and a large pot for cooking the pasta. Now, let’s bring it all together.

How to Make This Cheesy Tuna Mornay

Creating this Cheesy Tuna Mornay is easier than you might think. Here’s how to do it step by step:

Cook the pasta: Bring a large pot of salted water to a boil and cook your pasta according to package instructions. Drain and set aside.
Make the béchamel sauce: In a medium saucepan, melt butter over medium heat. Add flour and whisk constantly for 1-2 minutes to create a roux. Gradually add milk, whisking until the sauce thickens and is smooth.
Add flavor to the sauce: Stir in shredded cheddar, grated parmesan, a pinch of nutmeg, and salt and pepper to taste. Add sautéed onions and garlic for extra flavor.
Combine the casserole: In a large mixing bowl, combine the cooked pasta, drained tuna, and the cheesy béchamel sauce. Mix well to coat everything evenly.
Assemble and bake: Transfer the mixture to a greased casserole dish. Top with breadcrumbs and an additional layer of shredded cheddar. Bake in a preheated oven at 375°F (190°C) for 20-25 minutes, or until the top is golden and bubbly.
Serve and enjoy: Let the Tuna Mornay rest for 5 minutes before serving to allow the layers to set. Pair with a crisp green salad or steamed veggies for a complete meal.

Storage Options

This dish is perfect for leftovers, so don’t let any go to waste! Here’s how to store it:

Refrigerator: Store in an airtight container for up to 3 days. Reheat individual portions in the microwave or oven until warmed through.
Freezer: To freeze, portion the cooked casserole into freezer-safe containers. It will keep for up to 3 months. Thaw overnight in the refrigerator before reheating.
Reheating Tip: For the best texture, reheat in the oven at 350°F (175°C) until the topping is crispy again.

Variations and Substitutions

One of the best things about Cheesy Tuna Mornay is its versatility. Here are some ways to switch it up:

Vegetable Additions: Stir in cooked peas, broccoli florets, or diced carrots for added nutrition and color.
Protein Swaps: Not a fan of tuna? Try cooked chicken, salmon, or even a plant-based protein alternative.
Gluten-Free: Use gluten-free pasta and substitute a gluten-free flour blend in the béchamel sauce.
Spicy Twist: Add a dash of cayenne pepper or red chili flakes to the sauce for a hint of heat.
Cheese Variations: Experiment with gruyère, mozzarella, or pepper jack for a different flavor profile.

With so many ways to customize it, this dish can fit any occasion or preference!

Whether you’re whipping it up for a cozy family dinner or preparing it ahead for busy weeknights, Cheesy Tuna Mornay is a recipe you’ll keep coming back to. Its creamy texture, rich flavors, and simple preparation make it a timeless classic.

Now it’s your turn—grab a fork and dig into this cheesy, comforting delight