Classic Tuna Noodle Casserole (Easy, Creamy & Kid-Friendly)

Everyone keeps asking me for this recipe, so here goes nothing.

Classic Tuna Noodle Casserole is one of those dishes I used to be weirdly embarrassed about. Like, tuna from a can? Cream of mushroom soup? It felt so… 1987. But then I made it on a random Wednesday when my fridge was basically empty, and my kids demolished the whole pan and asked if there was more. So now I’m fully converted. No shame.

I think I first made this from a recipe my mom had clipped from a magazine. Or maybe it was a church cookbook. Honestly? I’m not sure. But I’ve made it about forty times since then, and it’s mine now.

Why This Classic Tuna Noodle Casserole Recipe Works Every Time

Look, I’m gonna be honest: a lot of tuna noodle casserole recipes online are kind of bland. They taste like… nothing. Warm nothing. And that is a tragedy.

The difference with this version? We’re building real flavor. A proper creamy sauce, a crunchy topping, and enough cheese to make you feel like you actually cooked something. It’s also genuinely a tuna noodle casserole easy enough for a Tuesday night, which is when I usually need it most.

Also, my 7-year-old, who refuses to eat anything that is “touching something green,” eats this without complaint. That alone is worth a trophy.

What You’ll Need (Ingredients)

Don’t stress too much about this list. Most of it is pantry stuff.

For the casserole:

• 3 cups egg noodles (uncooked)
• 2 cans (5 oz each) tuna in water, drained
• 2 cans (10.5 oz each) cream of mushroom soup
• 1 cup sour cream
• 1 cup frozen peas
• 1 and 1/2 cups shredded cheddar cheese, divided (seriously, shred it yourself, the bagged stuff doesn’t melt right)
• 1/2 cup whole milk
• 1/2 teaspoon garlic powder
• 1/2 teaspoon onion powder
• Salt and black pepper to taste

For the topping:

• 1 cup crushed Ritz crackers (about 20 crackers)
• 2 tablespoons melted butter

A quick note about the tuna: I use chunk light tuna in water. Not oil. I tried oil-packed once and the whole thing felt greasy in a way I didn’t love. And drain it well, like really press it in the colander, otherwise you get a watery sauce situation and that’s sad.

Good luck finding great peas this time of year (frozen is honestly better anyway, so don’t even bother with fresh).

How to Make This Tuna Noodle Casserole From Scratch

Step 1: Preheat your oven The key is, oh wait, I always forget to say this first: preheat your oven to 375°F. Do this before anything else. I can’t tell you how many times I’ve had everything assembled and the oven is still cold. Learn from my chaos.

Step 2: Cook the noodles Boil your egg noodles according to the package directions, but pull them out about 2 minutes early. They’re going to keep cooking in the oven and if you cook them all the way through now, you’ll end up with mush. Drain them and set aside.

Step 3: Make the creamy sauce In a large mixing bowl, stir together the cream of mushroom soup, sour cream, and milk until smooth. Add the garlic powder, onion powder, salt, and pepper. Stir again. It’ll look a little thick and weird at this stage. That’s completely normal.

Step 4: Add the good stuff Fold in the drained tuna, frozen peas, 1 cup of the shredded cheddar, and your par-cooked noodles. Stir everything together gently. You want it combined but you don’t need to be aggressive about it. This is not a workout.

Step 5: Get it into the pan Pour the mixture into a greased 9×13 inch baking dish. Spread it out evenly. Sprinkle the remaining 1/2 cup of cheddar cheese over the top.

Step 6: Make the cracker topping Mix your crushed Ritz crackers with the melted butter until they’re coated. Scatter this over the cheese layer. This topping is honestly the best part. Don’t skip it. Do NOT skip it.

Step 7: Bake Bake uncovered at 375°F for 25 to 30 minutes, until the top is golden and the edges are bubbling. If your top starts browning too fast before the 25-minute mark, loosely tent it with foil.

Let it sit for about 5 minutes before serving. I know that’s hard. But the sauce needs to settle or it’ll be soupy. (Learned this the hard way, twice.)

Tuna Noodle Casserole with Cheese: Tips I Actually Use

A few things I’ve figured out after making this more times than I can count:

• Real shredded cheese only. I said it in the ingredient list and I’ll say it again. Pre-shredded cheese has a coating that prevents it from melting properly. You’ll get weird clumps. Just grab a block and shred it yourself. Takes two minutes.

• Tuna noodle casserole for two: Cut the recipe exactly in half and use an 8×8 inch baking dish. Reduce baking time to about 20 to 22 minutes. Works perfectly.

• Stovetop version: Skip the oven entirely. After step 4, just cook everything in a large skillet over medium heat for about 10 to 12 minutes, stirring occasionally, until hot and bubbly. Add the cracker topping right before serving so it stays crunchy.

• My neighbor Sarah adds a squeeze of lemon juice to the sauce and honestly? It’s good. Brightens everything up. I do this probably half the time now.

• Some people use cream of celery soup instead of cream of mushroom and it works fine. I think the mushroom version has more depth but that’s just me.

• If you want to make this a tuna noodle casserole healthy swap, use Greek yogurt instead of sour cream. I’ve done this. It tastes slightly tangier but still really good, and you won’t notice once it’s baked.

Can You Make This in a Crockpot?

Actually, yes. For a tuna noodle casserole crockpot version: cook and drain your noodles, mix everything together (leave out the cracker topping), and pour it into your slow cooker. Cook on LOW for 2 to 3 hours. Add the buttered cracker topping in the last 20 minutes with the lid slightly vented so it can crisp up a bit. It won’t be as crunchy as the oven version but it’s still really good for days when you just need it to handle itself.

Serving This Classic Tuna Noodle Casserole

We eat this with a simple green salad that my kids ignore completely. Sometimes I add garlic bread because I have zero restraint. My husband puts hot sauce on his, every single time, without even tasting it first. I’ve given up commenting on this.

It reheats really well too. Add a splash of milk when microwaving leftovers and it stays creamy instead of drying out. You’re welcome.

It’s not fancy. But it’s warm and creamy and it gets eaten, every single time. And honestly? That’s the whole point of dinner.

Let me know how yours turns out! And if your kids actually eat the peas, I want to know your secret.

Happy cooking! (And may your smoke alarms stay quiet.)