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The Best Tuna Casserole

This delicious & easy Tuna Noodle Casserole comes together in just under 35 minutes and requires very few ingredients, making it perfect for weeknight dinners! 
Course Dinner
Cuisine American
Prep Time 15 minutes
Cook Time 20 minutes
Total Time 35 minutes
Servings 6 servings
Calories 452kcal
Author Ana Frias


  • 1 12 oz package egg noodles
  • 1/4 cup chopped onion
  • 2 Tbsp butter
  • 2 cups shredded Cheddar cheese
  • 1 cup frozen green peas
  • 2 6 oz cans tuna, drained
  • 1 26 oz can condensed cream of mushroom soup
  • 1/2 cup 2% milk
  • Salt & pepper to taste


  • Preheat oven to 425 degrees F. Spray with cooking spray a 9x13 inch baking dish.
  • Bring a large pot of water to a boil. Cook pasta for about 10 to 12 minutes or until al dente; drain and rinse under cold water.
  • Saute the 1/4 cup onions in the 2 tablespoons of butter until soft.
  • In a large bowl, mix all ingredients except the noodles (Note: reserve 1/2 cup of cheese to add on top of the casserole). Add the noodles and mix thoroughly.
  • Transfer mix to the prepared baking dish and sprinkle the remaining 1/2 cup of shredded cheese.  Bake for 20 minutes or until the cheese is completely melted.
  • Serve hot


Serving: 2cups | Calories: 452kcal | Carbohydrates: 32g | Protein: 28g | Fat: 26g | Saturated Fat: 11g | Cholesterol: 93mg | Sodium: 1502mg | Fiber: 3g | Sugar: 3g