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Hearty Tuna Casserole Recipe

Here's a jazzed-up version of Mom's tuna casserole that's sure to be comfort food for the whole family! Jan Heshelman of Bloomfield, Indiana adds pizzazz to the traditional dish with mustard, sour cream, thyme and zucchini. "I found this recipe in a magazine," says Jan. "It is one of the few dishes with zucchini that my husband will eat."
TOTAL TIME: Prep: 30 min. Bake: 35 min. YIELD:6 servings


  • 3 cups uncooked yolk-free wide noodles
  • 2 cans (6 ounces each) light water-packed tuna, drained and flaked
  • 1 cup shredded zucchini
  • 3/4 cup reduced-fat sour cream
  • 1 celery rib with leaves, thinly sliced
  • 1/4 cup chopped onion
  • 1/4 cup reduced-fat mayonnaise
  • 2 teaspoons prepared mustard
  • 1/2 teaspoon dried thyme
  • 1/4 teaspoon salt
  • 1 cup (4 ounces) shredded part-skim mozzarella cheese
  • 1 medium tomato, chopped


  • 1. Cook noodles according to package directions; drain. In a large bowl, combine the noodles, tuna, zucchini, sour cream, celery, onion, mayonnaise, mustard, thyme and salt.
  • 2. Spoon half into a 2-qt. baking dish coated with cooking spray. Sprinkle with half of the cheese. Repeat layers. Top with tomato.
  • 3. Cover and bake at 350° for 30-35 minutes. Uncover; bake 5 minutes longer. Yield: 6 servings.

Nutritional Facts

3/4 cup: 279 calories, 10g fat (5g saturated fat), 41mg cholesterol, 516mg sodium, 22g carbohydrate (0 sugars, 2g fiber), 25g protein. Diabetic Exchanges: 3 lean meat, 1 starch, 1 vegetable.

Reviews for Hearty Tuna Casserole

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[email protected] User ID: 1202636 248549
Reviewed May. 23, 2016

"This is the healthiest tuna casserole that I've ever made. I substituted grated carrot for the zucchini and added some chopped fresh spinach. It was delicious."

jtermont User ID: 1863534 237344
Reviewed Nov. 14, 2015

"I made this for my husband and I and he really like it. I like the fact it had zucchini, I have not seen that before and really appreciated that. I would definitely make this again."

goodfriends432351 User ID: 6335646 132562
Reviewed Jan. 12, 2014

"glad to see a healthy version of this classic..used Hellman's Balsamic Mayo and Dijon mustard in it and it really was much better tasting while still keeping calories under control."

sdipiazza User ID: 2106899 82865
Reviewed Oct. 25, 2013

"I cut the recipe in half. I used pasta shells instead of noodles, chopped fresh spinach instead of zucchini, added chopped mushrooms, chopped red bell pepper. Since I cut the sauce ingredients in half I was afraid it would be dry so I poured 1/4 cup chicken broth over the whole dish before I baked it. I didn't layer the cheese. I waited until the casserole was cooked through and then added 1/4 cheese on top and let it melt. Turned out really tasty. Would definitely make again."

mfl User ID: 765933 60483
Reviewed Dec. 1, 2009

"I like the idea of adding zucchini to this recipe to add some veggies to the was very tasty... we enjoyed it. I served it w/a baked tomato dish."

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