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Easy Tuna Noodle Casserole Recipe

Some recipes just feel like home the moment you taste them. Tuna noodle casserole is one of those comforting dishes that warms you from the inside out. 

It’s simple, satisfying, and exactly the kind of dinner you make when you want something easy but hearty.

tuna noodle casserole

Why I Love This Classic Casserole

Tuna noodle casserole has been around forever, and there’s a reason people keep coming back to it. It’s inexpensive, filling, and works with pantry staples you probably already have. 

What makes this version special is that it balances creaminess with lightness — nothing too heavy, nothing too salty, just real comfort food done right.

The noodles stay tender, the tuna blends in softly without overpowering anything, and the sauce wraps everything in a smooth, savory coating. Add a crunchy topping, and you’ve got a casserole that feels familiar and comforting but still totally crave-worthy.

What Makes This Recipe Different

Many casseroles go overboard on canned soup, turning the whole dish into something overly thick or pasty. This recipe uses a mix of classic shortcuts with fresh touches to make the sauce taste homemade. 

A bit of broth, a splash of milk, and simple seasonings give the casserole a creaminess that feels lighter and more balanced than the old-school version.

It’s the kind of casserole that tastes like a warm hug after a long day. It feeds a family, reheats beautifully, and never asks for complicated ingredients.

Ingredients 

Serves 6

Main Ingredients

  • 12 oz egg noodles
  • 2 cans tuna in water, drained
  • 1 cup frozen peas (no need to thaw)
  • 1 small onion, chopped
  • 1 can cream of mushroom soup
  • ½ cup milk
  • ½ cup chicken or vegetable broth
  • 1 ½ cups shredded cheddar cheese
  • 1 tablespoon butter or olive oil
  • ½ teaspoon garlic powder
  • ½ teaspoon paprika
  • Salt and black pepper to taste

Topping

  • 1 cup crushed crackers or breadcrumbs
  • 2 tablespoons melted butter

Cook the Noodles

Bring a large pot of salted water to a boil.

Add the egg noodles and cook until just tender — don’t overcook them because they’ll soften more in the oven. Drain and set aside.

Sauté the Onion

In a medium pan, melt the butter or warm the oil. Add the chopped onion and cook for 3–4 minutes, just until it softens. This tiny step adds so much flavor to the casserole without any extra work.

Make the Creamy Base

In a large mixing bowl, combine the cream of mushroom soup, milk, broth, garlic powder, paprika, salt, and pepper. Stir until everything blends together into a smooth sauce.

This mixture should be creamy and pourable — not too thick, not too watery.

Add Tuna and Peas

Fold in the drained tuna and frozen peas. Try not to break the tuna up too aggressively — keeping some small chunks gives better texture.

Bring Everything Together

Add the cooked noodles and half of the shredded cheese to the bowl. Gently toss everything until the noodles are fully coated in sauce.

You want every bite to have a balance of pasta, tuna, and veggies.

Transfer to a Baking Dish

Pour the mixture into a lightly greased 9×13-inch baking dish. Spread evenly and sprinkle the remaining cheese over the top.

Add the Crunch

Mix the melted butter with the crushed crackers or breadcrumbs. nSprinkle this over the cheese layer.

This topping gives the casserole that irresistible golden crunch that makes the whole dish shine.

Bake

Bake at 375°F (190°C) for 22–28 minutes or until the top is golden and the casserole is bubbling around the edges

Let it cool for a few minutes before serving; the sauce thickens as it sits.

How It Tastes

This casserole should be creamy without being heavy, with tender noodles and soft flakes of tuna throughout. The peas add just the right amount of sweetness, and the onions give depth without becoming noticeable. 

The cheesy top melts into the crunchy topping, giving you a perfect mix of textures in every bite.

It’s warm, comforting, and tastes like something you want to curl up with on the couch after a long day.

Easy Variations

More Veggies

Add mushrooms, corn, spinach, or sautéed celery for extra freshness.

Cheesy Version

Swap cheddar for mozzarella, Monterey Jack, or a mix of your favorite cheeses.

Spicy Twist

Sprinkle in a little cayenne, blackened seasoning, or red pepper flakes.

Healthier Option

Use whole-wheat noodles and low-sodium broth. You can also reduce the cheese or use light cream soup.

Tips for the Best Casserole

Don’t Overcook the Pasta

Slightly undercooked noodles hold their shape better after baking.

Use Solid Albacore Tuna for Firmer Chunks

Light tuna works too, but albacore keeps better texture.

Taste the Sauce Before Adding Noodles

Adjust salt, pepper, or seasoning now — this step makes a big difference.

Let It Rest Before Serving

Casseroles always taste better after 5–10 minutes of cooling.

How to Store & Reheat

Cover leftovers and refrigerate for up to 3 days.
 For reheating:

  • Oven: 350°F (175°C) for 10–15 minutes
  • Air fryer: 3–4 minutes
  • Microwave: 1–2 minutes

Add a splash of broth or milk if it looks dry.

When to Make This

This tuna noodle casserole is perfect for weeknights, batch cooking, winter evenings, family dinners, or anytime you want something filling but simple.

It’s also great for potlucks because it stays warm for a long time and slices cleanly.

Can I Make Tuna Noodle Casserole Ahead of Time?

Absolutely. Assemble everything up to the topping, cover, and refrigerate for up to 24 hours. Add the topping right before baking so it stays crisp.

Can I Freeze This Casserole?

Yes, you can! Prepare the casserole but skip the baking step. Wrap tightly and freeze for up to 2 months. Thaw overnight and bake as usual.