Tuna Melt Casserole takes a few of your favorite dishes and pairs them together beautifully.  Here we have the creamy and zesty tuna melt mixture, and pair it into a pasta dish that will send your taste buds on a frenzy!  If you like this tuna melt casserole, you should check out my classic tuna casserole!

Tuna Melt Casserole

The Best Tuna Casserole! Or is it?

Tuna Melt sandwiches are a family favorite in this house.  We make them a lot, and so occasionally we like to switch things up to keep the troops happy.  Entering into the picture… tuna melt casserole.  The flavor and texture of a tuna melt, with the added bonus of al dente’ rigatoni noodles, all smothered in cheddar and parmesan cheese and baked to perfection.  This unique take on tuna casseroles is one that everyone in my family enjoys, even the pickiest of eaters. However, when I asked about this casserole online, folks said overwhelmingly NO! No to casserole! I was shocked by this (as I am a Midwesterner and it’s in my blood) but really hoping folks would give it a shot. As any parent knows, getting creative for dinner can be a challenge, and this easy recipe is one that comes together quickly AND will taste good. Promise. 🙂

Melting Cheese on Tuna Melt Casserole

How to Make Tuna Melt Casserole

This is a relatively simple dish to prepare, with just a few, very simple steps.

Noodles

For this dish, you are going to start by preparing your noodles.  I like to use salted water because it adds flavor to the water, which is absorbed by the food.  It also increases the boiling point of the water (increasing the temperature) and that makes your noodles cook better.   Al dente just means that the noodles are cooked until they are firm and chewy but not soft or soggy.  This is very important to pasta because it will continue to cook after being removed from the water.  Most of the boxes or bags that you buy pasta in will indicate how long to cook the noodles.  Most of the time it is around 12-14 minutes.

Broccoli

In this case, we are going to cook the noodles to almost al dente, and at the 9-minute mark, we are going to add in the broccoli florets and cook for another 5 minutes.  Drain the whole pot and set it aside for later.

Roux

A Roux (pronounced “roo”) is a thickening agent for soups and sauces and is typically what gives dishes like this a thick and creamy body.  Roux is made by cooking equal parts flour and fat together until the flavor of the flour is cooked out completely.  For our roux, we use butter, flour, salt, and pepper.  Typically, roux is cooked quickly and constantly, whisking so it doesn’t burn or overcook.  You will only cook this for one minute total.

Cheese Blend

To make your roux the cheesy goodness that will make this tuna melt casserole, you will add in milk and cheese to the roux mixture.  Start by increasing the heat to medium-high and whisking in the milk. Continue whisking until the mixture starts to boil and slightly thicken. Then, remove it from the heat and stir in half of the Swiss cheese and half of the cheddar cheese. Stir to melt.  Make sure to save that extra cheese because we are going to melt it over the top!

Combine it all

Add the cheese sauce to the pasta and broccoli along with the tuna. Pour into a casserole dish and arrange tomato slices on top.  Throw on the remaining cheese, cover with foil and bake until you see your cheese start to develop that beautiful bubbly texture that tells you its time to eat!

Tuna Melt Casserole with Tomatoes and Broccoli

Looking for More Tuna Recipes?

Easy Tuna Casserole

Tuna Melt Sliders

Open Faced Tuna Melt Sandwich

Tuna Melt with Tomato Relish

The Best Tuna Salad Sandwich

Tuna Melt Casserole

Prep Time 10 mins
Cook Time 30 mins
Total Time 40 mins
Tuna Melt Casserole takes a few of your favorite dishes and pairs them together beautifully.  Here we have the creamy and zesty tuna melt mixture, and pair it into a pasta dish that will send your taste buds on a frenzy!  If you like this tuna melt casserole, you should check out my classic tuna casserole!

Ingredients

  • 1 package (16 ounces) rigatoni
  • 4 cups broccoli florets (3 small heads)
  • 2 tablespoons butter
  • 2 tablespoons flour
  • 1 teaspoon kosher salt
  • 1 teaspoon freshly ground black pepper
  • 4 cups whole milk
  • 1 cup swiss cheese, shredded and divided
  • 1 cup Cheddar cheese, shredded and divided
  • 3 cans (5 ounces each) chunk tuna in water, drained and flaked
  • 3 Roma tomatoes, sliced in ¼" slices

Instructions

  • Preheat oven to 400°F. 
  • In a large pot, cook pasta in boiling salted water for about 3 minutes. 
  • Add the broccoli and cook for the last 5 min. Drain the pasta and noodles well and set aside.
  • In a medium saucepan, melt the butter over low heat and then add the flour, stirring constantly. Add salt and pepper to taste and cook for 1 minute. 
  • Whisk in milk and increase heat to medium-high. Continue whisking until mixture starts to boil and slightly thicken. 
  • Remove from heat and stir in half of the Swiss cheese and half of the cheddar cheese. Stir to melt.
  • Add the cheese sauce to the pasta and broccoli along with the tuna. Pour into a 9x13 casserole dish. Arrange tomato slices on top and cover with remaining cheese.
  • Cover with foil and bake for 20 minutes until hot and bubbly. (You can remove the foil 5 minutes before it is done for a golden brown cheese.)

Did you make this recipe?

You can tag me at @iamhomesteader.

Did you Make Tuna Melt Casserole?

Did you make this recipe?  I want to hear about it!  Take a picture and tag me on Instagram or on Facebook.  I would love to see your finished product!  Make sure to tag me @iamhomesteader or hashtag #iamhomesteader, or both!

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Reader Comments

  1. My family is not crazy for hot tuna so I use canned chicken which is wonderful (even for chicken salad). No one knows it i s canned and they rave for my chicken salad. Will try chicken in this recipe and let you know. Sounds like it will\
    be great.

  2. I like try this with sausage in stead of tuna , that what I do when I get the box stuff I use sausage I don’t like hot tuna

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