Best Tuna Melt Casserole

By Tara Noland on April 17, 2016 | Updated March 14, 2023

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We love a great tuna melt sandwich, it is a quick and easy dinner. So when I came across this Tuna Melt Casserole in the Good Housekeeping 100 Best One-Dish Meals I had to share it with you. This is the best tuna casserole I have ever had and your family will love this one too! I had to call it the Best Tuna Melt Casserole and I hope you agree. I also love sharing my recipes over at AllFreeCasseroleRecipes, come and check them out.

Best Tuna Melt Casserole with tomatoes and cheese on top

I looooove when tomatoes are heated like this. The added cheese and pasta along with the tuna is amazing. Tucked underneath is broccoli which is also a win, win with kids and parents. A delicious meal that you will be making again and again for your family.

Best Tuna Casserole

This is a complete delicious meal that you can have whipped up in no time. A real crowd pleaser that kids and adults will like equally. I grew up on tuna melt sandwiches so this is a nice nostalgic recipe to bring back some good memories.

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Tuna Melt Casserole

Tara Noland

This recipe takes the traditional tuna melt sandwich to a whole new level with this wonderful casserole.

4.80 from 20 votes

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Prep Time 15

Cook Time 35

Total Time 50

Course Dinner

Cuisine American

Servings servings

Calories 460 kcal

Ingredients

1-16 oz. pkg. large rigatoni
4 cups broccoli flowerets
2 Tbsp. butter
2 Tbsp. flour
Salt and pepper
4 cups 2% milk
1 cup 4 oz. Swiss cheese, shredded
4 oz. Cheddar cheese shredded
3 – 4 oz. cans chunk tuna in water drained and flaked (12 oz. of tuna)
2-3 medium tomatoes sliced in 1/4″ slices

Instructions

In a large pot, cook pasta in boiling salted water for 5-6 min. or about 5 min. away from al dente according to the package. Add the broccoli and cook for the last 5 min. Drain well and return to saucepan.
Preheat oven to 400F. Grease a 9×13" casserole dish and set aside.
In a medium saucepan, melt the butter over low heat and then add the flour, stirring.
Add salt and pepper to taste and cook for 1 min. Whisk in milk and increase heat to medium-high.
Continue whisking until the mixture starts to boil and thicken. The sauce will be fairly loose still. Remove from heat and stir in 1/2 cup each of Swiss and cheddar cheese. Stir to melt.
Add the cheese sauce to the pasta and broccoli along with the tuna. Pour into the prepared dish. Arrange tomato slices on top and cover with remaining cheese.
Cover with foil and bake for 20 min. of until hot and bubbly.

Nutrition

Serving: 1Calories: 460kcalCarbohydrates: 44gProtein: 32gFat: 18gSaturated Fat: 10gPolyunsaturated Fat: 6gTrans Fat: 1gCholesterol: 70mgSodium: 570mgFiber: 6gSugar: 12g

Nutrition calculation is an estimation only. If you need nutritional calculations for medical reasons, please use a source that you trust.

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Recipe adapted from Good Housekeeping 100 Best One-Dish Meals