This Easy Tuna Casserole With Cornflakes Recipe is one of the family’s favorite casserole dinners! We have been making this since 2017 and have tried so many variations based on the base recipe. Ironically we have even made this on accident with frosted flakes instead of the original cornflakes.
Thank you to Tuna Squish for sponsoring this Easy Tuna Casserole; I was given Tuna Squish for reviewing purposes. No monetary compensation was given; all opinions are mine and truthful to the experiences in my kitchen. (I have included affiliate links to products I love. As an Amazon Associate, I earn from qualifying purchases.) In addition, this post contains affiliate links that will make me a small commission when used to order online.

Weeknights are crazy with the kid’s soccer schedule and after-school activities!! Tuna Casserole is always a hit with the family!!! As the mom, I love that it’s quick and easy plus, the ingredients are ones I always have on hand, and also being able to get the ingredients at great prices at the grocery store as well.
Tuna Casserole Ingredients:
- Cream of Chicken
- Mayonnaise
- Milk
- Onion– This will be diced, you can use onion powder or miniced onion in place of fresh onion.
- Celery– I diced my pieces larger so my son could pick out the celery
- Tuna– You could use tuna in oil or tuna in water, I prefer the tuna in the water vs the oil.
- No Yolk Noodles
- Cheddar Cheese
- Salt
- Pepper
- Corn Flakes–
Easy Tuna Casserole Directions:
Preheat your oven to 375 degrees.
Cook your egg noodles according to the directions and strain when they are done.
Mix together the cream of chicken, mayonnaise, and milk together in a large bowl.
Next, add the diced celery and onion to your mixture.

Add next, strain the tuna and add to the bowl.
After mixing add in the cooked and strained egg noodles.
Finally, after everything is well mixed in add in the amount of cheese if you want.

Salt and pepper to your taste, and add in other seasonings if you want to.
Spray casserole pan and place in a 9X13 pan spray with nonstick and spread out the mixture.
Top with crushed corn flakes, or you can skip these.
Cook at 375 degrees for about 40-45 minutes, just until the top starts to brown.

What is your go-to weeknight casserole recipe?
Other Ingredients For Tuna Casserole:
- Cream Of Mushroom
- Frozen Peas
- Macaroni Noodles
- Crispy Onions
- Breadcrumbs
- Bell Peppers
- Mushroom
- Potato Chips
What To Serve With Tuna Casserole:
- Kale Salad
- Parmesan Garlic Breadsticks
- Vegetable Stir Fry
- Cheesy Monkey Bread
- Garlic Pull-Apart Bread
- Pull-Apart Cheesy Bread

Easy Tuna Casserole
Ingredients
- 10.5 Ounce cream of chicken soup
- 1/2 cup mayonnaise
- 1/4 cup milk
- 1/2 cup onion
- 1/2 cup celery
- 3 cans Tuna
- 1 Bag No Yolk Noodles
- Cheddar cheese
- salt
- pepper
- Corn Flakes
Instructions
-
Preheat your oven to 375 degrees.
-
Cook your egg noodles according to the directions and strain when they are done.
-
Mix together the cream of chicken, mayonnaise, and milk together in a large bowl.
-
Next, add the diced celery and onion to your mixture.
-
Add next, strain the tuna and add to the bowl.
-
After mixing add in the cooked and strained egg noodles.
-
Finally, after everything is well mixed in add in the amount of cheese if you want.
-
Spray casserole pan and place in a 9X13 pan spray with nonstick and spread out the mixture.
-
Salt and pepper to your taste, and add in other seasonings if you want to.
-
Top with crushed corn flakes, or you can skip these.
-
Cook at 375 degrees for about 40-45 minutes, just until the top starts to brown.
Heather Bridson says
My favorite tuna… tuna melts, with a really good brand of cheddar. YUM!!!!
Sandra Watts says
I like good ole tuna casserole and now and then a good tuna sandwich.
Jennifer Adams says
Tuna noodle casserole
Lisa @ Drugstore DIvas says
I love making tuna cakes. Well, eating them at least ;]
Cathy S. says
My favorite is a tuna fish sandwich.
mallory panchelli says
A good ole tuna sandwich is my favorite
Curtis Heining says
I like old fashioned macaroni and tuna
Cheryl Hume says
My favorite recipe is a tuna melt on a half hoagie bun with tons of cheese!!!
Kendra Williamson says
Tuna melts on english muffins made by my hubby! YUM!
Michele says
Tuna is a favorite mine. My favorite recipe is tuna burgers!
Jennifer Crosland says
I love a good tuna salad on toast!
angie says
tuna helper 😀
Cheryl B says
I like a good tuna noodle casserole.
Blossom Smith says
This was a great recipe and really easy to make. We sauteed the onions before mixing them in and it was great that way.