Grandma's Tuna Casserole


I know it sounds bonkers, but trust me, this tuna casserole is one of the yummiest things ever. A comfort food bonanza! Before this, Grandma had never written out this recipe. She doesn't measure anything when cooking this, but it must be tasted throughout.

Tuna Casserole with cheese
Prep Time:
20 mins
Cook Time:
25 mins
Total Time:
45 mins
8 servings


  • 12 ounces egg noodles

  • 1 (5 ounce) can tuna, drained and flaked, or more to taste

  • ½ cup sour cream

  • ½ cup milk, divided

  • 1 (1 ounce) package dry onion soup mix (such as Lipton®)

  • 1 teaspoon Worcestershire sauce

  • ¼ teaspoon garlic powder, or to taste

  • teaspoon seasoned salt (such as LAWRY'S®), or more to taste

  • salt and ground black pepper to taste

  • 2 tablespoons butter, cut into small pieces, divided

  • 8 ounces ridged potato chips (such as Ruffles®)

  • 2 cups shredded mozzarella cheese (Optional)


  1. Fill a large pot with lightly salted water and bring to a rapid boil. Cook egg noodles at a boil until tender yet firm to the bite, 7 to 9 minutes. Drain.

  2. Mix cooked noodles with tuna, sour cream, 1/4 cup milk, onion soup mix, Worcestershire sauce, garlic powder, seasoned salt, salt, and pepper. Taste and adjust seasonings as desired.

  3. Lay 1/2 of the butter across the bottom of a 2-quart, microwave-safe casserole dish. Crush potato chips, then sprinkle 1/4 of the crushed chips over the bottom and press to flatten.

  4. Spread the tuna-noodle mixture in a single layer over the crushed chips. Layer with 1/2 of the mozzarella, 2/3 of the remaining chips, followed by the remaining butter, chips, milk, and mozzarella.

  5. Microwave on high until casserole is hot and cheese is melted, about 10 minutes.

Cook's Notes:

A reduced amount of garlic salt can be used in place of garlic powder, if preferred.

You can cook this in the oven instead of the microwave. Cook at 350 degrees F (175 degrees C) until chips are golden brown, 35 to 45 minutes.

Nutrition Facts (per serving)

412 Calories
18g Fat
48g Carbs
13g Protein
Nutrition Facts
Servings Per Recipe 8
Calories 412
% Daily Value *
Total Fat 18g 23%
Saturated Fat 5g 27%
Cholesterol 55mg 18%
Sodium 540mg 23%
Total Carbohydrate 48g 17%
Dietary Fiber 3g 9%
Protein 13g
Vitamin C 7mg 33%
Calcium 60mg 5%
Iron 2mg 11%
Potassium 527mg 11%

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

** Nutrient information is not available for all ingredients. Amount is based on available nutrient data.

(-) Information is not currently available for this nutrient. If you are following a medically restrictive diet, please consult your doctor or registered dietitian before preparing this recipe for personal consumption.

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