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Chef John's Tuna Noodle Casserole

This comforting bake pairs tender egg noodles with a rich white Cheddar sauce, briny tuna, and sweet pops of peas, all finished with a golden, crunchy breadcrumb-Parmesan topping. Chef John's Tuna Noodle Casserole is hearty and nostalgic, perfect for a cozy family dinner or a potluck where classic flavors shine.

  • Prep15 mins
  • Cook55 mins
  • Serves8
  • DifficultyMedium
Chef John's Tuna Noodle Casserole
  1. 1

    Preheat the oven to 375 degrees F (190 degrees C). Lightly butter a 9x13-inch casserole dish.

  2. 2

    Melt 3 tablespoons butter in a medium saucepan over medium heat. Sauté onion with 1/2 teaspoon kosher salt until it begins to soften and turn translucent, 3 to 4 minutes. Add the flour and cook, stirring, for 3 minutes, lowering the heat if needed.

  3. 3

    Pour in cold milk and whisk for 1 minute. Increase the heat to medium-high and cook, stirring often, until the sauce thickens and reaches a simmer. Remove from the heat, whisk in Cheddar cheese, and set aside until needed.

  4. 4

    Fill a large pot with water and the remaining salt and bring to a rapid boil. Cook egg noodles for 5 minutes. Drain well and transfer to a large mixing bowl. Stir in the reserved sauce, then add tuna, peas, cayenne, black pepper, and Worcestershire sauce. Mix with a spatula until evenly combined.

  5. 5

    Pour the mixture into the prepared dish. In a small bowl, mix bread crumbs, Parmigiano-Reggiano cheese, and olive oil until combined and the texture resembles wet sand. Sprinkle evenly over the casserole.

  6. 6

    Bake in the center of the preheated oven until browned and bubbly, about 30 minutes. Let rest for 10 minutes before cutting and serving.