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5 from 14 votes

The BEST Tuna Casserole

The Best Tuna Casserole is SO easy to make! Made with a simple from scratch sauce, egg noodles, tuna, peas and a crunchy Panko-Parmesan topping, this comfort food classic is sure to be a new family favorite! Serve with homemade dinner rolls and broccoli salad for a simply delicious dinner! 
Prep Time15 mins
Cook Time25 mins
Total Time40 mins
Course: Dinner, Main
Cuisine: American
Keyword: casserole, tuna casserole, tuna noodle casserole
Servings: 10
Calories: 247kcal
Author: Trish - Mom On Timeout


  • 3 cups wide egg noodles about 5 oz
  • 1/4 cup unsalted butter
  • 1 cup celery chopped
  • 1 red bell pepper chopped
  • 1/2 onion diced
  • 1/4 cup all purpose flour
  • 1/2 tsp salt
  • 1/2 tsp ground black pepper
  • 2 1/4 cups whole milk
  • 2 tbsp Dijon mustard
  • 12 oz water packed chunk tuna drained
  • 1/2 cup frozen peas thawed
  • 4 oz cheddar cheese shredded
  • 1/2 cup panko bread crumbs
  • 1/4 cup grated Parmesan cheese
  • 1 tsp smoked paprika
  • 1 tbsp parsley chopped
  • 1 tbsp butter melted


  • Preheat oven to 375 degrees. Lightly grease a 2 quart baking dish and set aside.
  • Cook noodles according to package directions, removing when al dente. Drain, and set aside.
  • Melt butter in a large skillet over medium heat. Add celery, bell pepper, and onion and cook until onion is translucent, stirring frequently.
  • Stir in flour, salt and pepper.  Slowly add milk and cook, stirring constantly until thick and bubbly. Stir in Dijon mustard.
  • Add tuna, peas, noodles, and cheddar cheese and fold into the sauce.
  • Pour mixture into the prepared dish.
  • Combine Panko, Parmesan cheese, smoked paprika parsley and melted butter in a small bowl and sprinkle over the top.
  • Bake casserole for 25 to 30 minutes, uncovered, or until heated through and golden brown on top. Let stand for a few minutes before serving.



Calories: 247kcal | Carbohydrates: 17g | Protein: 14g | Fat: 13g | Saturated Fat: 7g | Cholesterol: 56mg | Sodium: 410mg | Potassium: 246mg | Fiber: 1g | Sugar: 4g | Vitamin A: 975IU | Vitamin C: 16.4mg | Calcium: 195mg | Iron: 1.4mg