Old Fashioned Tuna Noodle Casserole Recipe

I never expect a 10-ingredient dinner to win over the whole table this fast, but this creamy Tuna Noodle Casserole does it every time. With tender egg noodles, a rich sauce, and that classic old-fashioned flavor, it’s the weeknight dinner I keep coming back to.

I’m obsessed with this Old Fashioned Tuna Noodle Casserole because it tastes like straight-up dinner, not a project. I love the way egg noodles turn creamy and soft around the tuna, with that rich, savory sauce clinging to every forkful.

But the best part? It feels filling without being fussy.

I keep coming back to this one on busy nights when I want something reliable, salty, creamy, and satisfying. And leftovers somehow hit even harder the next day.

Simple pantry-style food. Big casserole energy.

No drama, just the kind of meal I crave when the day has been a lot.

Ingredients

• Egg noodles make it cozy, soft, and totally old-school in the best way.
• Tuna brings the protein, and honestly, it keeps dinner cheap and filling.
• Cream of mushroom soup makes everything creamy without trying too hard.
• Milk loosens the sauce so it’s not thick like paste.
• Peas add a little sweetness, color, and yes, something kind of healthy.
• Sharp cheddar gives it that salty, melty bite you’ll want in every scoop.
• Onion adds real flavor, so the casserole doesn’t taste flat.
• Butter helps the topping brown up and taste richer.
• Breadcrumbs or potato chips bring the crunch, which is basically the best part.
• Salt and pepper pull everything together, because bland casserole is just sad.
• Plus, these ingredients are simple, familiar, and probably already in your kitchen.

Ingredient Quantities

• 12 ounces egg noodles
• 2 cans (5 ounces each) tuna packed in water, drained
• 2 cans (10.5 ounces each) cream of mushroom soup
• 3/4 cup milk
• 1 cup frozen peas, thawed
• 1 cup shredded sharp cheddar cheese
• 1 small yellow onion, finely chopped
• 2 tablespoons butter, melted
• 1 cup breadcrumbs or crushed potato chips for topping
• Salt and black pepper to taste

How to Make this

1. Preheat oven to 375 F and grease a 9×13 inch baking dish.

2. Cook 12 ounces egg noodles in salted boiling water according to package directions until just al dente; drain well.

3. While noodles cook, finely chop 1 small yellow onion and sauté in 2 tablespoons melted butter over medium heat until softened, about 4 minutes.

4. In a large bowl combine 2 cans (
10.5 oz each) cream of mushroom soup, 3/4 cup milk, salt and black pepper to taste, and the sautéed onion; stir until smooth.

5. Fold drained noodles, 2 cans (5 oz each) drained tuna, and 1 cup frozen peas (thawed) into the soup mixture until evenly coated.

6. Stir in 1 cup shredded sharp cheddar cheese, reserving a small handful for sprinkling on top if desired.

7. Transfer the mixture to the prepared baking dish and smooth the top.

8. Mix 1 cup breadcrumbs or crushed potato chips with any remaining melted butter and sprinkle evenly over the casserole; top with reserved cheddar if using.

9. Bake uncovered for 20 to 25 minutes, until bubbly and the topping is golden. Let sit 5 minutes before serving.

Equipment Needed

1. Oven set to 375 F
2. 9×13 inch baking dish, greased
3. Large pot for boiling noodles
4. Colander for draining noodles and tuna
5. Large skillet for sautéing onion
6. Cutting board and chef knife
7. Large mixing bowl and measuring cups/spoons
8. Spoon or spatula for stirring and smoothing
9. Small bowl or measuring cup for melted butter and breadcrumb topping

FAQ

Old Fashioned Tuna Noodle Casserole Recipe Substitutions and Variations

• Tuna: Substitute canned salmon, drained and flaked, for a richer flavor and similar texture.
• Cream of mushroom soup: Use an equal amount of homemade white sauce made from 2 tablespoons butter, 2 tablespoons flour, and 1 cup milk, seasoned with salt and pepper.
• Milk: Swap with half-and-half or unsweetened plain yogurt thinned with a little water for extra creaminess.
• Breadcrumbs or crushed potato chips topping: Replace with crushed Ritz crackers or panko mixed with 1 tablespoon melted butter for extra crunch and browning.

Pro Tips

– Rinse and shake the noodles after draining to stop them cooking from residual heat. That keeps them from turning mushy once they go into the casserole.

– Fold the tuna and peas in gently so the flakes of tuna stay intact. Overworking the mixture will make the tuna break down and make the texture pasty.

– Brighten the dish with a little acid. Stir in a teaspoon of lemon juice or a teaspoon of Dijon mustard to the soup mixture before combining; it cuts the creaminess and lifts the flavor without overtaking it.

– For a crunch upgrade, mix panko or crushed potato chips with a tablespoon or two of melted butter and a pinch of smoked paprika before sprinkling. The extra fat helps the topping brown evenly and stay crisp.