This tuna pasta bake is a cozy meal that hits the spot on busy nights. With creamy cheese and tender pasta, it’s like a warm hug in a bowl. You can whip this up without a lot of fuss, which is great for someone like me who juggles a busy schedule.
This recipe prevents overcooked pasta, avoids lumpy sauce, and offers storage tips for keeping leftovers fresh.

Sometimes, finding a satisfying dish that works for everyone can be tricky, especially since my family has gluten allergies. But this recipe is a lifesaver! It makes use of pantry staples and brings together flavors that everyone can enjoy. Plus, it’s ready in just 45 minutes!
You’ll love how simple it is to toss together. Start with cooking the rigatoni just right, then mix in the tuna and that cheesy, delicious sauce. Don’t worry about a lumpy sauce, just keep whisking as you add the milk. This helps create a smooth, creamy bake that feels comforting after a long day.
Why You Will Love This Recipe
- Rich and Creamy Texture , This dish has a comforting creaminess that wraps around the pasta, making each bite feel like a warm hug.
- Cheesy Flavor , The combination of low-fat sharp cheddar and savory tuna creates a rich, cheesy taste that’s both satisfying and delicious.
- Quick and Easy Prep , With just 45 minutes from start to finish, it’s a simple meal for busy nights that doesn’t skimp on flavor.
- Flexible Storage , This tuna pasta bake keeps well in the fridge for up to five days, or you can freeze it for later, making meal planning simple.
Ingredient Notes

- Rigatoni: This pasta shape really holds onto the creamy sauce, making every bite comforting. Go for a brand that cooks evenly to avoid mush!
- Albacore tuna: I love using albacore for its rich flavor and chunky texture. Try to find it packed in water for a lighter taste, and don’t forget to drain it!
- Low-fat sharp cheddar: This cheese adds a nice kick and creaminess without being too heavy. Look for block cheese to grate yourself; it melts way better.
- Semi-skimmed milk: Using this in the cheese sauce keeps it creamy but light enough to avoid weighing down the dish. You can substitute with any milk you like, just avoid anything too sweet.
- Unsalted butter: Butter brings richness to the entire bake. I prefer unsalted so I can control the seasoning, but go ahead and use salted if that’s what you have!
Keep scrolling to the recipe card below for the full printable recipe!
Recipe Tips
- If the cheese sauce turns lumpy, whisk continuously while adding the milk to achieve a smooth texture.
- When cooking the pasta, aim for al dente as per the package instructions to prevent it from becoming too soft during baking.
- If the bake lacks a crispy topping, broil for a few minutes after baking to create a golden, crunchy crust.
- For extra nutrition and flavor, consider adding chopped broccoli or peas to the dish before baking.
- If storing leftovers, ensure they are in an airtight container and keep them refrigerated to maintain freshness.
Serving Suggestions
- Serve creamy tuna pasta bake with a side salad for freshness. Garlic bread complements the dish well and adds warmth.
- This recipe works great in casseroles or pasta dishes. Enjoy it in meal prep, combining it with various vegetables or proteins.
- Garnish with fresh herbs to add a touch of flavor. A squeeze of lemon juice brightens the dish before serving.
Storage Guidelines
- To keep your creamy tuna pasta bake fresh, follow these storage tips:
- Refrigeration: Store the pasta bake in an airtight container in the fridge for up to 5 days. Keep it covered.
- Freezing: Wrap the pasta bake tightly in plastic wrap or aluminum foil, then place it in a freezer bag. Freeze for up to 2 months. To enjoy, thaw in the refrigerator overnight.
Recipe Variations
- You can use penne pasta instead of rigatoni for a different shape in your tuna pasta bake.
- Add 1 teaspoon of garlic powder and ½ teaspoon of onion powder to boost the flavor.
- Either swap the low-fat sharp cheddar with mozzarella or goat cheese for a different taste and texture.
- Scale the recipe by doubling the ingredients: use 28 oz (800 g) of rigatoni and 21 oz (600 g) of tuna.
Did you make this recipe? Scroll down to leave a star rating and review!
Creamy Tuna Pasta Bake

Equipment
- Large pot
- deep pan or Dutch oven
- Baking dish
Ingredients
- 14 oz rigatoni or another short pasta
- 2 tablespoons unsalted butter
- 1 medium red onion finely diced
- 3 tablespoons plain flour
- 2 ½ cups semi-skimmed milk
- ½ teaspoon salt
- ¼ teaspoon freshly ground black pepper
- 1 teaspoon Dijon mustard
- 7 oz low-fat sharp cheddar
- 10.5 oz albacore tuna drained and flaked
- 1 cup sweetcorn 165 g
- Fresh parsley to garnish
Instructions
- Start by boiling the rigatoni in a pot of salted water until it’s al dente. Check the package for timing so it does not get mushy. Drain when ready.
- Melt the butter in a pan and add the diced red onion. Sauté until soft and aromatic, about a few minutes, until the onion turns translucent.
- Stir in the flour to the buttery onion mixture until it is well combined and forms a paste-like consistency. Slowly pour in the milk while whisking continuously until the mixture is smooth to avoid lumps.
- Mix in the salt, pepper, and Dijon mustard. Fold in the cheddar until it is melted and creamy. If the sauce appears clumpy, whisk it more for a smooth texture.
- Gently fold in the flaked tuna and sweetcorn into your creamy sauce, ensuring everything is well-coated without over-stirring.
- In a large bowl, combine the pasta and sauce, making sure each piece of rigatoni is well-coated. If it seems too dry, add a splash of milk to loosen it up.
- Pour the mixture into a greased baking dish, spreading it evenly.
- Bake until golden. Let cool slightly before garnishing with fresh parsley.
Notes
– Whisk continuously while adding the milk to prevent lumps in the cheese sauce.
– Cook the pasta al dente as per package instructions to prevent it from becoming too soft during baking.
– If the bake lacks a crispy topping, broil for a few minutes after baking. Reheating Instructions: Reheat in the oven at 350 degrees F for about 20 minutes or until warmed through. Serving Suggestions: Serve with a side salad for a fresh contrast or pair with garlic bread for a cozy meal. Garnish with fresh herbs for added flavor. Recipe Variations:
– Use penne pasta for a different shape.
– Substitute the albacore tuna with canned salmon.
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