Comforting dish combining tender noodles, savory tuna, and a crunchy onion topping for cozy family dinners.
# The Ingredients You'll Need:
→ Pasta
01 - 12 oz egg noodles
→ Seafood
02 - 2 cans (6 oz each) tuna in water, drained
→ Vegetables
03 - 1 cup frozen peas, thawed
04 - 1 small onion, finely chopped
05 - 2 cloves garlic, minced
06 - 1 cup sliced button mushrooms (optional)
→ Sauce
07 - 2 tablespoons unsalted butter
08 - 2 tablespoons all-purpose flour
09 - 2 cups whole milk
10 - ½ cup sour cream
11 - 1 teaspoon Dijon mustard
12 - ½ teaspoon salt
13 - ½ teaspoon black pepper
14 - ½ teaspoon dried thyme
→ Cheese
15 - 1 cup shredded cheddar cheese
→ Topping
16 - 1 cup crispy fried onions
# Step-by-Step Instructions:
01 - Preheat oven to 375°F. Lightly grease a 9 x 13 inch baking dish.
02 - Boil egg noodles according to package instructions until al dente. Drain and set aside.
03 - In a large skillet over medium heat, melt butter. Add onion and mushrooms; sauté 4 to 5 minutes until softened. Stir in garlic and cook for 1 minute.
04 - Sprinkle flour over vegetables and cook, stirring, for 1 minute. Gradually whisk in milk and cook until the sauce thickens, about 3 to 4 minutes.
05 - Remove from heat and stir in sour cream, Dijon mustard, salt, pepper, and thyme.
06 - Add drained tuna, peas, shredded cheddar, and cooked noodles to the sauce. Mix gently until evenly combined.
07 - Transfer the mixture into the prepared baking dish and evenly sprinkle crispy fried onions on top.
08 - Bake uncovered for 25 to 30 minutes, until bubbly and golden on top.
09 - Allow casserole to rest for 5 minutes before serving.
