Cheesy tuna noodle casserole is an easy and classic dinner dish that the whole family can enjoy. With Ritz cracker crumbs on top, green peas, and lots of noodles and cheese, this dish is worthy of seconds.

So believe it or not, I was into my mid 20's before ever trying tuna noodle anything, and it was only because these are meals my husband grew up eating. Of course, I make my own adaptions every time and adjust it based on what I have on hand so it's never made the same way twice. This simple tuna noodle casserole always turns out delicious.
To keep it simpler on my memory I made up a rule of 2 for my tuna noodles when I'm cooking in a 9x13 baking dish. This is to make sure I don't get dry noodles and I get the same results more often than not.
The rule of two is simple, 2 cans of this, 2 cups of that, while not everything is done in pairs, it really does help me to remember the quantities needed for this baked tuna noodle casserole.
🥘 Ingredients
- Egg noodles
- Frozen peas
- Onion
- Cream of mushroom
- Canned tuna
- Salt
- Cheddar cheese
- Ritz crackers
- Butter
For the exact amounts needed, please see the recipe card below.
🍽 Equipment Needed
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- Measuring cups
- Large pot
- Colander
- 9x13 baking dish
🔪 Instructions
Check out how to make cheesy tuna noodle casserole with these simple step-by-step instructions:
Bring a large pot of water and 2 teaspoon of salt to a boil. Add in your egg noodles and cook according to package directions. Drain into a colander. Return pot to stove and cook onions until soft (about 3 minutes).
Turn off the heat and preheat your oven to 350F degrees.
Add your noodles cream of mushroom, cheese, peas, and tuna into the pot.
Stir to combine.
Pour the mix into a greased baking dish.
Crush Ritz crackers and place them into a small bowl with melted butter. Stir to mix and then sprinkle it over the top of the casserole.
Bake in the oven for 30 minutes.
Serve and enjoy.
🍴 Recipe Tips
If you want to use canned peas in this easy tuna noodle casserole recipe, you can. I used to do it this way because that's what my husband said he was used to, but I've since found that frozen gives a prettier color and a burst of freshness once baked that keeps this dish from feeling depressing and makes it a little more comforting if you know what I mean.
I didn't always add the Ritz cracker on top either. For a long time, I made it plain without a topping. Then I noticed others used Panko, so I tried that too and they were flavorless. Finally, when I took inspiration from my chicken divan casserole and grabbed a sleeve of crackers. The rest was history.
If you want a creamier end result, adding 1-2 cups of sour cream is awesome. If you have picky eaters as I do, 1 cup sour cream and 1 cup of milk help to give the creaminess without all that tangy sour cream flavor that not everyone enjoys.
💭 FAQs
Yes, tuna noodles can be made and frozen. Simply assemble it as directed and let cool completely in a freezer safe pan. Then place the pan on a baking sheet and cover the top well with foil. Freeze for bout 2 hours until solid, and transfer to a freezer safe bag or wrap very well with plastic wrap. It can last 5-6 months this way. Thaw overnight in the fridge and bake as directed.
Yes. This casserole can be assembled ahead of time and placed in the fridge for up to 2 days in advance.
Leftover tuna noodles lasts about 3-4 days covered in the fridge.
Serve your tuna noodle with a side of steamed veggies like broccoli or another green vegetable. A simple green side salad or some homemade biscuits all work well. Some people even say that creamy coleslaw tastes great on the side of their tuna noodle!
Looking for more delicious casserole recipes?
- Chicken Broccoli Rice Casserole
- Sausage Green Bean Potato Casserole
- Walking Taco Casserole
- Mac and Cheese Tuna Casserole
- Chicken Divan Casserole
- Tater Tot Casserole With Corn (Hotdish)
📖 Recipe
Cheesy Tuna Noodle Casserole
Ingredients
- 1 bag egg noodles (16oz) ($1.93)
- 2 cups frozen peas ($0.77)
- 1 cup onion, diced ($0.70)
- 2 cans cream of mushroom soup ($1.16)
- 2 cans tuna, drained ($1.44)
- 2 teaspoon salt ($0.20)
- 2 cups shredded cheddar cheese ($1.86)
- 1 sleeve Ritz crackers ($0.59)
- 2 tablespoon butter, melted ($0.18)
Instructions
- In a large pot of water, boil your egg noodles with 2 teaspoon of salt. Drain and leave in colander. Return pot to stove and cook your onions until soft (about 3 minutes).
- Turn off the heat and preheat your oven to 350F degrees.
- Add your noodles, cream of mushroom, cheese, peas, and tuna to the pot. Stir to combine.
- Pour the mixture into a greased 9x13 baking dish or casserole dish.
- In a small bowl, crush your crackers into crumbs and mix with melted butter. Sprinkle mixture over casserole.
- Bake in the oven for 30 minutes until golden brown and warmed through.
Dean Klear says
You can use cream of celery along with the remains ingredients and it goes off the charts !
Nicole says
I've never used cream of celery before, but I'm really intrigued! I'll try it next time since this is a regular dish in our homes already 🙂