Easy American Potato and Tuna Casserole

Easy American Potato and Tuna Casserole


"My casserole is amazing! As an aspiring chef, I spend a lot of time in the kitchen. I'm 18 and this is one of my creations. Your family will love this dish for its melted cheese and soft potatoes. It's a good way to get calcium in your diet as well."


1 h 35 m servings 323 cals
Serving size has been adjusted!

Original recipe yields 6 servings



  • Calories:
  • 323 kcal
  • 16%
  • Fat:
  • 6 g
  • 9%
  • Carbs:
  • 30.6g
  • 10%
  • Protein:
  • 33.7 g
  • 67%
  • Cholesterol:
  • 130 mg
  • 43%
  • Sodium:
  • 867 mg
  • 35%

Based on a 2,000 calorie diet

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  • Prep

  • Cook

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  1. Preheat oven to 400 degrees F (200 degrees C).
  2. In a large pot over high heat, place the potatoes with water to cover and bring to a boil. Let boil for about 20 minutes, or until potatoes are tender. Drain and transfer potatoes to a large bowl. Add the milk, mozzarella cheese and 2 tablespoons of the Parmesan cheese.
  3. Using an electric mixer, beat the potatoes until almost smooth. Then beat in the eggs, drain the tuna and stir the tuna into the potato mixture. Then stir in the green onion, and season with salt and pepper to taste.
  4. Transfer mixture to a lightly-greased 10-inch diameter glass pie dish and top with the remaining Parmesan cheese.
  5. Bake at 400 degrees F (200 degrees C) for 45 minutes, or until golden brown.
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  1. 39 Ratings


I, personally, have never used potatoes in my tuna casseroles (never thought to; DUH!) but my Daughter used this recipe as a base for a cooking class she's taking at our local CC. She "tweaked" ...

I used Chedder cheese in place of mozzarella, which I didn't have onhand. It was sooo good, such a nice break from plain old tuna casserole. My picky two year old even liked it! I also threw ...

I wanted to try this recipe as a change from my famous tuna noodle casserole. After reading the other reviews, I decided to spice up this one by using sour cream instead of milk, adding a little...

I have been making this for years, and just looked up the recipe again because I am making it today. My changes: I use sweet onion that I dice and carmelize in butter first, use 50% more tuna, ...

Tuna? Potatos? What could be better than combining the two together. This was very good and really easy to make. I didn't have green onions on hand so I used French Fried Onions and it was rea...

I was excited to try this recipe...who could go wrong with tuna and potatoes... I found this to be very dry despite adding sour cream and extra cheese. However, the flavor was pretty good (I did...

after reading the reviews, i decided to use this recipe 'n changed it a bit. I used 2 chopped green onions (so the food looks better and it gives it a bit of a crunchy taste). I used one cup of ...

Too bland

this was great, and very, very easy - convenient for a busy cook like myself. an excellent dish for a new cook :D well done!