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Light-But-Hearty Tuna Casserole

Total Time

Prep: 20 min. Bake: 25 min.


4 servings

Updated: Jan. 04, 2023
My boyfriend grew up loving his mother's tuna casserole and says he can't even tell that this one is healthier! We have this light tuna casserole at least once a month. I usually serve it with a salad, but it has enough veggies to stand on its own. —Heidi Carofano, Brooklyn, New York
Light-But-Hearty Tuna Casserole Recipe photo by Taste of Home


  • 3 cups uncooked yolk-free noodles
  • 1 can (10-3/4 ounces) reduced-fat reduced-sodium condensed cream of mushroom soup, undiluted
  • 1/2 cup fat-free milk
  • 2 tablespoons reduced-fat mayonnaise
  • 1/2 teaspoon ground mustard
  • 1 jar (6 ounces) sliced mushrooms, drained
  • 1 can (5 ounces) albacore white tuna in water
  • 1/4 cup chopped roasted sweet red pepper
  • 1/4 cup dry bread crumbs
  • 1 tablespoon butter, melted
  • 1/2 teaspoon paprika
  • 1/4 teaspoon Italian seasoning
  • 1/4 teaspoon pepper


  1. Preheat oven to 400°. Cook noodles according to package directions.
  2. In a large bowl, combine soup, milk, mayonnaise and mustard. Stir in the mushrooms, tuna and red pepper. Drain noodles; add to soup mixture and stir until blended. Transfer to a greased 8-in. square baking dish.
  3. Combine topping ingredients; sprinkle over casserole. Bake until bubbly, 25-30 minutes.
Light Tuna Casserole Tips

What else can you put in light tuna casserole?

Chopped onion is a great, flavorful addition. Feel free to mix in other vegetables, too, such as peas, carrots, and corn. Even a sprinkle of cheese won't hurt!

How should you store light tuna casserole?

Leftover food can be stored safely for 3 to 4 days. Refrigerate in an airtight container or place in freezer bags or freezer-safe containers for about a month for perfectly portioned meals.

What's the best way to reheat light tuna casserole?

Microwaving food is the quickest and easiest way to reheat. You can also warm your light tuna casserole leftovers slowly over low heat in a saucepan with a little water.

Rashanda Cobbins, Taste of Home Food Editor

Nutrition Facts

1-1/2 cups: 322 calories, 9g fat (3g saturated fat), 32mg cholesterol, 843mg sodium, 39g carbohydrate (7g sugars, 4g fiber), 18g protein.

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