Classic Tuna Casserole Recipe: The Ultimate Comfort Food

Today I’m sharing my go-to tuna casserole that’s been a lifesaver on countless busy weeknights. After years of perfecting this recipe through trial and error (and plenty of family taste tests!), I’ve created the perfect balance of creamy, crunchy, and comforting that’ll have everyone asking for seconds.

Why This Tuna Casserole Recipe Works

This isn’t your grandmother’s mushy casserole. My version combines traditional comfort with a few simple techniques that make a big difference. The secret lies in using quality ingredients and proper layering techniques that prevent the dreaded soggy bottom while ensuring every bite is perfectly seasoned.

Tuna casserole plate

Essential Ingredients

For the casserole:

  • 12 oz wide egg noodles
  • 2 cans (12 oz each) solid albacore tuna in water, drained
  • 1 can (10.5 oz) cream of mushroom soup
  • 1 cup sour cream
  • 1½ cups frozen peas
  • 2 cups sharp cheddar cheese, shredded
  • ½ cup milk
  • 1 medium onion, finely diced
  • 2 cloves garlic, minced
  • Salt and black pepper to taste

For the topping:

  • 2 cups crushed potato chips or French fried onions
  • ½ cup Parmesan cheese, grated
  • 2 tablespoons butter, melted

Step-by-Step Instructions

1. Prep Your Kitchen (5 minutes)
Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish with butter. I can’t stress enough how mise en place (everything in its place) speeds up cooking.

2. Cook the Noodles (8 minutes)
Boil the egg noodles according to package directions, but subtract 2 minutes from the cooking time. They’ll finish cooking in the oven, preventing mushy pasta a common mistake I see home cooks make.

3. Sauté Aromatics (3 minutes)
In a large skillet, sauté onions in butter until translucent. Add garlic and cook for 30 seconds until fragrant. This builds the flavor foundation.

4. Create the Creamy Base (5 minutes)
In a large mixing bowl, combine cream of mushroom soup, sour cream, milk, and 1½ cups of cheddar cheese. Add the sautéed onions and garlic. Season with salt and pepper. Fold in the drained tuna and frozen peas gently to maintain tuna chunks.

5. Combine and Layer (3 minutes)
Add the drained noodles to your mixture, stirring carefully. Transfer everything to your prepared baking dish, spreading evenly.

6. Add the Crown (2 minutes)
Mix crushed chips with Parmesan and melted butter. Sprinkle evenly over the casserole, then top with remaining cheddar cheese.

7. Bake to Perfection (25-30 minutes)
Bake until the edges bubble and the top turns golden brown. Let it rest for 5 minutes before serving.

Tuna casserole

Pro Tips for Success

These are the tips that make the biggest difference:

  • Use solid albacore tuna rather than chunk light for better texture and flavor
  • Don’t skip the resting time  it allows the casserole to set properly
  • Fresh mushrooms sautéed with the onions elevate this dish significantly
  • Make it ahead: Assemble everything except the topping, refrigerate overnight, then add topping and bake

Nutritional Benefits

Despite being comfort food, this casserole packs nutritional value. Tuna provides lean protein and omega-3 fatty acids, while peas add fiber and vitamins. Using whole wheat noodles increases the fiber content without sacrificing taste.

Storage and Reheating

Store leftovers in an airtight container for up to 3 days in the refrigerator. Reheat individual portions in the microwave at 50% power to prevent drying out, or cover with foil and warm in a 325°F oven.

FAQs

Q: Can I make this gluten-free?
A: Absolutely! Use GF pasta and ensure your soup and chips are certified gluten-free.

Q: What can replace cream of mushroom soup?
A: Try cream of chicken or make a homemade white sauce with butter, flour, and milk.

Q: Can I freeze tuna casserole?
A: Yes, freeze without topping for up to 2 months. Thaw overnight and add fresh topping before baking.

Q: What sides pair well?
A: Simple green salad, roasted vegetables, or garlic bread complement perfectly.

Print
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Tuna casserole recipe

Classic Tuna Noodle Casserole

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Creamy tuna noodle casserole with peas and cheddar under a crunchy, buttery Parmesan topping.

  • Total Time: 50 minutes
  • Yield: 6 to 8 servings

Ingredients

  • 12 oz wide egg noodles
  • 2 cans (12 oz each) solid albacore tuna in water, drained
  • 1 can (10.5 oz) cream of mushroom soup
  • 1 cup sour cream
  • 1 1/2 cups frozen peas
  • 2 cups shredded sharp cheddar cheese, divided
  • 1/2 cup milk
  • 1 medium onion, finely diced
  • 2 cloves garlic, minced
  • Salt and black pepper, to taste
  • Topping: 2 cups crushed potato chips or French fried onions
  • Topping: 1/2 cup grated Parmesan cheese
  • Topping: 2 tablespoons butter, melted

Instructions

  1. Preheat the oven to 350°F (175°C) and grease a 9×13-inch baking dish.
  2. Boil the noodles 2 minutes less than the package directions and drain.
  3. Sauté the onion in a little butter until translucent, then add the garlic for 30 seconds.
  4. In a large bowl, combine the soup, sour cream, milk, 1 1/2 cups of the cheddar, the onion and garlic. Season with salt and pepper.
  5. Gently fold in the tuna and peas, then the noodles. Spread in the baking dish.
  6. Mix the crushed chips with the Parmesan and melted butter, sprinkle over the casserole and top with the remaining cheddar.
  7. Bake for 25 to 30 minutes, until bubbling and golden. Rest 5 minutes before serving.

Notes

Undercooking the noodles keeps them from turning mushy in the oven. Solid albacore gives the best texture.

  • Author: Chef Jessika
  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Category: Dinner, Lunch
  • Method: Baking
  • Cuisine: American

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