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Tuna Mornay pasta bake with elbow macaroni and corn, scooped from a baking dish.

Tuna Mornay

Smiling woman with glasses and dark hair, professional portrait for Baked Bree website.Diane Goodman
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Prep Time 15 minutes
Cook Time 40 minutes
Total Time 55 minutes
Course Main Course
Cuisine American
Servings 10 servings
Calories 553 kcal

Ingredients
  

  • 16 ounces elbow macaroni
  • 2 teaspoons olive oil
  • 1 medium yellow onion diced
  • 1/4 cup unsalted butter
  • 1/4 cup all-purpose flour
  • 4 cups whole milk room temperature
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 1 cup grated Parmesan cheese
  • 1 cup shredded mild cheddar cheese
  • 20 ounces canned tuna drained and flaked
  • 1 can sweet corn (15 ounces) drained
  • 1 can creamed corn (15 ounces)

Instructions
 

  • Bring a large pot of salted water to a boil. Add the elbow macaroni and cook until al dente. Drain and set aside.
  • Heat the olive oil in a skillet over medium heat. Add the diced onion and cook until soft, about 5 to 7 minutes. Set aside.
  • In a medium saucepan, melt the butter over medium heat. Stir in the flour and whisk for 1 to 2 minutes to form a roux. Slowly add the milk while whisking constantly to prevent lumps. Bring the mixture to a simmer and cook until it thickens, about 4 to 5 minutes.
    Pouring whole milk into a saucepan with a roux for Tuna Mornay.
  • Season with salt and pepper, then remove from heat and stir in both the Parmesan and cheddar cheeses until melted and smooth.
    Stirring melted Parmesan and cheddar cheeses into the mornay sauce for Tuna Mornay in a saucepan.
  • In a large bowl, gently fold together the cooked pasta, flaked tuna, sweet corn, creamed corn, and sautéed onion. Pour the cheese sauce over the mixture and stir until evenly combined.
  • Transfer the mixture to a greased 9x13-inch baking dish. If desired, top with a little extra cheese. Bake in a preheated oven at 350°F for 20 to 25 minutes, until bubbly and the top is lightly golden. Cover with foil during the last 5 minutes of baking if the surface is brown but the center is not heated through yet.
    Tuna Mornay casserole with macaroni and corn in a baking dish.

Nutrition

Calories: 553kcalCarbohydrates: 47gProtein: 27gFat: 29gSaturated Fat: 11gSodium: 1973mgFiber: 5g
Keyword Tuna Mornay
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