Easy Tuna Noodle Casserole
Add Preferred SourceTuna noodle casserole is the dinner I make when nothing’s thawed, takeout isn’t happening, and the cupboard is down to a few cans of tuna and a bag of egg noodles. It comes together from pantry staples, so there’s no last-minute run to the store. What makes this version worth the oven time is the sauce, a real cheddar sauce cooked from scratch instead of a can of condensed soup.
The trick I’ve learned making it is to stop the noodles early and keep the sauce looser than looks right, because the pasta keeps drinking up liquid in the oven. Get that part correct and the cheddar sauce stays creamy through the bake instead of drying out, with enough left over for lunches later in the week.
Why You Will Love Recipe
- Canned tuna and egg noodles are pantry staples, so you can pull this together without a shopping trip.
- The cheddar sauce, cooked from scratch, skips canned condensed soup, which puts you in control of the salt and how thick it gets.
- It reheats well for weekday lunches, so one bake covers more than one meal.
- The Panko and Parmesan topping bakes up crisp over the creamy noodles, so there’s contrast in every forkful.
- Everyday ingredients and nothing special, and it stretches easily with whatever vegetables you have on hand.
Ingredients You’ll Need
Here’s what’s worth noting before you start; the printable card below has the full list with quantities.
- Egg noodles: a 10-ounce bag of short egg noodles holds the sauce better than long pasta, and they’re the base of the dish.
- Canned tuna in water: drain the cans well. The extra liquid is what leaves a casserole watery, and water-packed tuna keeps the taste clean under the cheddar.
- Milk and flour: these build the roux-based cheese sauce that stands in for canned soup. Whole milk gives the richest result.
- Cheddar cheese: shredded, and melted into the sauce off the heat so it stays smooth instead of turning grainy.
- Panko and Parmesan: the topping. Panko bakes up lighter and crunchier than a standard topping, and the Parmesan browns for color.
- Red onion and garlic: softened first to give the sauce its base flavor.
How to Make Tuna Noodle Casserole
A complete printable recipe and the measurements in both US customary and metric are available in the recipe card below.
Cook the noodles just under
Boil the egg noodles in salted water and pull them a minute before the package says they’re done. They keep cooking once they hit the hot sauce and the oven, so slightly firm now means tender, not mushy, later.
Drain and set aside. Preheat your oven to 356°F (180°C) and grease a baking dish.
Build the cheddar sauce
Warm the olive oil and soften the diced red onion and minced garlic for about 7 minutes. Stir in the flour to make a roux, then whisk in the milk a little at a time and cook until it thickens into a smooth sauce.
Fold in the tuna and noodles
Take the pan off the heat before you add the cheese, then stir the shredded cheddar in until it melts smoothly.
Fold in the drained tuna, season with salt and pepper, and mix through the noodles. Keep the sauce looser than you think it needs to be; it firms up in the oven.
Top and bake
Spoon everything into a greased baking dish. Toss the Panko and Parmesan with the melted butter and scatter it over the top. Bake for 15 to 20 minutes, until the topping is golden.
The ingredients are already cooked, so this heats the casserole through and crisps the top. Don’t leave it in the oven longer than needed.
Rest, garnish, and serve
Let it settle for a few minutes so the sauce sets enough to spoon cleanly, then scatter fresh parsley over the top and serve.
Recipe Notes and Expert Tips
- Cook the noodles a minute under al dente. Fully cooked noodles keep drinking the sauce and turn soft in the bake.
- Keep the sauce looser than looks right. It thickens as it bakes and the noodles absorb liquid, so a sauce that seems slightly thin now is about correct.
- Melt the cheddar off the heat. Adding cheese to a sauce that’s still boiling is what makes it turn grainy.
- Drain the tuna thoroughly. That one step does the most to keep the finished casserole from going watery.
- Don’t overbake. The filling is mostly cooked before baking, so bake only until the dish is warm and the topping is lightly browned.
Recipe Variations
- Fold in vegetables to stretch it further. A cup of frozen peas, corn, or sauteed mushrooms goes in with the tuna, a swap I’ve tested plenty of times when I want the dish to feed more.
- For a different melt, swap the cheddar for mozzarella or Gouda. Both are tested here and melt smoothly.
- When the Panko runs low, crushed potato chips or Ritz crackers make a tested stand-in for the topping.
- A gluten-free version is supported with gluten-free pasta and a gluten-free flour blend. Keep an eye on the pasta, since gluten-free shapes soften faster and can overcook.
How to Store Leftovers
You can assemble the casserole a day ahead and keep it covered in the fridge before baking. Add a few minutes to the bake time if it goes into the oven cold.
Store leftovers in the fridge for 3 to 4 days, and reheat until they reach 165°F (74°C) in the center. Get the dish into the fridge within 2 hours of baking rather than leaving it out to cool to room temperature first, and move it into a shallow container so it chills quickly.
For freezing, wrap well and freeze for up to 3 months for the best quality. Thaw overnight in the fridge instead of on the counter.
What to Serve With Tuna Noodle Casserole
A rich, creamy casserole like this one wants something fresh and light beside it. A plate of air fryer broccoli adds a green vegetable with a bit of crunch, and it cooks while the casserole is in the oven.
If you’d rather round the meal out with something to catch the sauce, warm garlic bread does the job. A simple green salad with a sharp vinaigrette also cuts the richness of the cheddar sauce nicely.
FAQs
No. This version builds a cheddar sauce from a simple roux of olive oil, flour, and milk, so you control the thickness and the salt without a can of condensed soup.
Either works, and recipes differ on which is better. Freezing it unbaked keeps the topping crispest, while freezing baked portions is the simpler route for leftovers you didn’t finish. Whichever you pick, thaw it overnight in the fridge before baking or reheating.
After the noodles, overbaking is the next thing to check, since the filling only needs heating through rather than a long spell in the oven. To rescue leftovers that have stiffened up, stir a spoonful of milk or mayonnaise through before reheating, which loosens the sauce back up.
This recipe is built as a baked casserole and hasn’t been tested in a slow cooker. If you try it, expect softer noodles, since they’ll sit in the sauce for much longer than a short bake.
More Easy Dinners to Make This Week
If you’re ready for another easy dinner, here’s where I’d go next:
- Chicken Pot Pie Casserole is the one to make when you want another creamy, baked dinner but with chicken and vegetables in place of tuna.
- Taco Casserole bakes taco night into one dish, layering ground beef, black beans, and corn tortillas so nobody has to assemble a plate at the table.
- Air Fryer Tuna Sandwich crisps a couple of cans of tuna into patties in the air fryer, for a night you want a tuna dinner without heating the oven.
- Pasta Carbonara a stovetop dinner in about 30 minutes, using bacon, egg, and Pecorino.
Equipment
Ingredients
- 10 ounces egg noodles short
- 2 tablespoons olive oil
- 3 cloves garlic minced
- 1 red onion diced
- 3 tablespoons all-purpose flour
- 4 cups milk
- 2 cups Cheddar cheese
- 4 cans tuna in water drained
- Salt and pepper
- Fresh parsley to serve
For the Panko topping:
- ½ cup Panko
- ¼ cup freshly grated Parmesan
- 2 tablespoons melted butter
Video
Instructions
- Cook pasta according to package instructions; drain.10 ounces egg noodles
- Preheat the oven to 356°F (180ºC).
- Heat a non-stick skillet and add the olive oil, once it’s hot, fold in the garlic and onion and cook until wilted about 7 minutes.2 tablespoons olive oil, 3 cloves garlic, 1 red onion
- Add the flour, mix well, and cook until slightly thickened, then whisk in the milk until fully combined and continue cooking for a couple of minutes or until desired thickness is achieved.3 tablespoons all-purpose flour, 4 cups milk
- Remove the mixture from heat, then stir in the shredded cheddar cheese until melted and well incorporated. Gently fold in the flaked tuna and season with salt and pepper to taste. Finally, add the cooked noodles and mix thoroughly until everything is evenly distributed.2 cups Cheddar cheese, 4 cans tuna in water, Salt and pepper
- In a bowl, mix all the panko topping ingredients.¼ cup freshly grated Parmesan, 2 tablespoons melted butter, ½ cup Panko
- Grease a baking dish and pour the tuna mixture. Top with the panko mixture and bake for 15-20 minutes, or until golden brown.
- Serve with fresh parsley and enjoy!Fresh parsley
Notes
- Cook the egg noodles one minute under al dente; they finish cooking in the oven.
- Drain the tuna well to keep the casserole from turning watery.
- Melt the cheddar off the heat so the sauce stays smooth.
- Fold vegetables like peas, corn, or sautéed mushrooms in with the tuna to stretch it further.
- Swap the cheddar for mozzarella or Gouda, or the Panko for crushed potato chips or Ritz crackers.
- For a gluten-free version, use gluten-free pasta and a gluten-free flour blend, and watch the pasta so it does not overcook.
- Store leftovers in the fridge for 3 to 4 days, and reheat until they reach 165°F (74°C) in the center.
