Classic Tuna Noodle Casserole with Creamy Sauce
This classic tuna noodle casserole is comfort food refined—creamy, balanced, and deeply satisfying without being heavy. Built on sound technique rather than shortcuts, it delivers clean flavors, a silky sauce, and a nostalgic appeal elevated to modern standards. It’s the kind of dish that feels familiar yet thoughtfully crafted, ideal for both weeknight dinners and relaxed family gatherings.
Ingredients List
- Egg noodles
- Canned tuna in water, drained
- Unsalted butter
- Yellow onion, finely diced
- Garlic, minced
- All-purpose flour
- Whole milk
- Heavy cream
- Chicken or vegetable stock
- Frozen peas
- Mushrooms, finely sliced
- Sharp cheddar cheese, grated
- Parmesan cheese, finely grated
- Dijon mustard
- Salt
- Freshly ground black pepper
- Paprika
- Breadcrumbs
- Olive oil
- Fresh parsley, finely chopped
Step-by-Step Instructions

Cook the Noodles
Bring a large pot of salted water to a boil and cook the egg noodles until just al dente. Drain and set aside. Slight undercooking ensures they finish perfectly in the oven.
Build the Flavor Base
In a wide saucepan, melt butter over medium heat. Add diced onion and cook until soft and translucent. Stir in garlic and mushrooms, cooking until fragrant and lightly softened.
Create the Creamy Sauce
Sprinkle flour over the vegetables and cook briefly to remove any raw taste. Slowly whisk in milk and stock, followed by cream, stirring constantly until the sauce thickens smoothly.
Enrich the Sauce
Add Dijon mustard, cheddar cheese, and Parmesan. Stir gently until melted and cohesive. Season with salt, black pepper, and paprika, tasting and adjusting as needed.
Combine the Casserole
Fold the cooked noodles, tuna, and peas into the sauce until evenly coated. Transfer the mixture to a lightly greased baking dish.
Finish and Bake
Mix breadcrumbs with olive oil and sprinkle evenly over the top. Bake until bubbling and golden, allowing the casserole to rest briefly before serving.
Cook Time
Total: 45 minutes
Prep: 15 minutes
Bake: 30 minutes
Servings
Makes approximately 6 servings
Nutritional Information (approx. per serving)
- Calories: 480
- Protein: 28g
- Carbohydrates: 42g
- Fat: 22g
- Saturated Fat: 11g
- Sodium: 560mg
Storage Instructions
Allow the casserole to cool completely before storing. Keep refrigerated in an airtight container for up to 3 days. Reheat covered in the oven or gently in portions, adding a splash of milk if needed to refresh the sauce.
Suggestions
- Use high-quality tuna packed in water for clean flavor and better texture.
- Freshly grate cheese for superior melting and taste.
- For extra depth, add a small pinch of nutmeg to the sauce.
Seasonal Relevance
This dish is especially comforting during fall and winter, when warm, creamy meals are most welcome. It also works well year-round as a make-ahead option for busy schedules.
Conclusion
Classic Tuna Noodle Casserole with Creamy Sauce proves that timeless recipes endure for a reason. With careful attention to texture, seasoning, and balance, this version honors tradition while delivering a polished, chef-driven result. It’s comforting, reliable, and quietly elegant—exactly what a great casserole should be.
Classic Tuna Noodle Casserole with Creamy Sauce
6
servings15
minutes30
minutes480
kcalA timeless comfort dish made with tender egg noodles, quality tuna, and a smooth, from-scratch creamy sauce. Finished with a golden breadcrumb topping, this casserole delivers familiar flavor with refined technique and balanced richness.
Ingredients
12 oz egg noodles
2 cans (5 oz each) tuna in water, drained
3 tbsp unsalted butter
1 small yellow onion, finely diced
2 cloves garlic, minced
1½ cups mushrooms, thinly sliced
3 tbsp all-purpose flour
1½ cups whole milk
½ cup heavy cream
½ cup chicken or vegetable stock
1 cup sharp cheddar cheese, grated
½ cup Parmesan cheese, grated
1 cup frozen peas
1 tsp Dijon mustard
½ tsp paprika
Salt, to taste
Freshly ground black pepper, to taste
½ cup breadcrumbs
1 tbsp olive oil
Fresh parsley, chopped (optional)
Directions
- Preheat oven to 375°F (190°C). Grease a baking dish and set aside.
- Cook egg noodles in salted boiling water until just al dente. Drain and reserve.
- Melt butter in a saucepan over medium heat. Sauté onion until soft, then add garlic and mushrooms.
- Stir in flour and cook briefly. Slowly whisk in milk, stock, and cream until thickened.
- Add cheddar, Parmesan, Dijon, paprika, salt, and pepper. Stir until smooth.
- Fold in noodles, tuna, and peas. Transfer to prepared baking dish.
- Combine breadcrumbs with olive oil and sprinkle evenly on top.
- Bake for 30 minutes, or until bubbling and golden. Rest 5 minutes before serving.
Recipe Video
Notes
- Slightly undercook noodles so they finish perfectly in the oven.
- Freshly grated cheese improves texture and flavor.
- Add a splash of milk when reheating to restore creaminess.
FAQs
Can I prepare this casserole ahead of time?
Yes. Assemble the casserole, cover, and refrigerate up to 24 hours before baking. Add the breadcrumb topping just before placing it in the oven.
What can I use instead of mushrooms?
If mushrooms aren’t preferred, finely diced celery or leeks provide a similar savory base without altering the texture significantly.
Can this recipe be frozen?
It can be frozen before baking for up to one month. Thaw overnight in the refrigerator and bake as directed, adding a few extra minutes if needed.
