Print

Lightened-Up Tuna Casserole

5 Stars 4 Stars 3 Stars 2 Stars 1 Star

No reviews

This healthier tuna casserole is packed with veggies, tender noodles, creamy garlic-herb sauce, and topped with crunchy toasted Panko—comfort food made lighter and fresher.

  • Author: Ella
  • Prep Time: 15 minutes
  • Cook Time: 25 minutes
  • Total Time: 40 minutes
  • Yield: 3–4 servings
  • Category: Main Dish
  • Method: Stovetop
  • Cuisine: American

Ingredients

1/4 cup toasted Panko breadcrumbs

2 tablespoons butter

8 ounces baby bella mushrooms, sliced

2 medium carrots, diced

1 medium white onion, diced

3 cloves garlic, minced

1/4 cup all-purpose flour

1 1/2 cups chicken or vegetable stock

1 1/2 cups plain milk

2 teaspoons Italian seasoning (homemade or store-bought)

1 teaspoon fine sea salt

1/2 teaspoon freshly ground black pepper

1 cup frozen peas

8 ounces wide egg noodles

3 (5-ounce) cans tuna, drained

1 cup (4 ounces) grated sharp white cheddar cheese

Optional garnishes: chopped fresh parsley or thyme, lemon slices

Instructions

Boil water for the noodles in a large stockpot.

Toast the Panko in a dry sauté pan over medium-high heat until golden. Set aside.

Sauté veggies: In the same pan, melt butter. Add mushrooms, carrots, and onion; cook for 6–8 minutes. Add garlic and cook 1 more minute.

Add flour and cook for 1 minute, stirring constantly.

Make the sauce: Stir in stock, then add milk, Italian seasoning, salt, pepper, and peas. Bring close to a simmer, then reduce heat.

Cook noodles until just al dente. Drain and add to sauce.

Mix casserole: Add tuna and cheddar to the veggie noodle mixture. Toss gently until combined and cheese is melted.

Serve warm, topped with toasted breadcrumbs, herbs, and a squeeze of lemon.

Notes

Toast Panko in a sauté pan or in the oven at 350°F until golden.

You can still bake this casserole if preferred: place in a baking dish, top with breadcrumbs, and bake at 400°F for 18–20 minutes.