Tuna Noodle Casserole Crispy Onion

Featured in: Comfort Food Favorites

This creamy baked dish combines tender egg noodles, savory tuna, and a medley of vegetables bound in a rich sauce. Topped with golden crispy fried onions and buttered breadcrumbs, it bakes to a bubbly, flavorful finish. Easy to prepare and perfect for family dinners, this comforting casserole brings together classic flavors with a satisfying crunch.

Updated on Thu, 20 Nov 2025 11:35:00 GMT
Golden, bubbly Tuna Noodle Casserole with a crispy onion topping, perfect for a cozy weeknight meal. Pin
Golden, bubbly Tuna Noodle Casserole with a crispy onion topping, perfect for a cozy weeknight meal. | quickcrav.com

A comforting, creamy baked casserole featuring tender noodles, savory tuna, and a golden, crispy onion topping—perfect for family dinners or potlucks.

My family asks for this tuna noodle casserole every time they want something hearty that feels nostalgic. I once served it at a neighborhood potluck and people raved about how comforting and satisfying it was.

Ingredients

  • Pasta: 340 g (12 oz) wide egg noodles
  • Protein: 2 cans (each 170 g/6 oz) tuna in water, drained
  • Vegetables: 1 cup frozen peas, 1 small onion finely chopped, 2 cloves garlic minced, 1 cup sliced mushrooms (optional), 2 tbsp chopped fresh parsley
  • Sauce: 1 can (295 g/10.5 oz) condensed cream of mushroom soup, 1 cup whole milk, 1/2 cup sour cream, 1 cup shredded cheddar cheese, 1/2 tsp black pepper, 1/2 tsp salt, 1/2 tsp dried thyme (optional)
  • Topping: 1 1/2 cups crispy fried onions (store-bought), 1/2 cup breadcrumbs, 2 tbsp melted butter

Instructions

Prepare baking dish:
Preheat oven to 190°C (375°F). Lightly grease a 23x33 cm (9x13 inch) baking dish.
Cook noodles:
Cook egg noodles in a large pot of salted boiling water until al dente. Drain and set aside.
Sauté vegetables:
In a large skillet over medium heat, sauté chopped onion and garlic in a bit of oil until soft (about 3 minutes). Add mushrooms if using and cook until tender.
Prepare sauce:
In a large bowl, whisk together condensed soup, milk, sour cream, shredded cheese, salt, pepper, and thyme.
Combine ingredients:
Add cooked noodles, drained tuna, peas, sautéed vegetables, and parsley to the bowl. Stir gently to combine.
Assemble casserole:
Pour mixture into prepared baking dish and spread evenly.
Make topping:
In a small bowl, toss breadcrumbs with melted butter. Sprinkle buttered breadcrumbs over casserole, then top with crispy fried onions.
Bake:
Bake uncovered for 25-30 minutes, until casserole is bubbling and topping is golden brown.
Rest:
Let stand for 5 minutes before serving.
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| quickcrav.com

Whenever we make this dish, my kids race to scoop out the crunchy topping first. Sharing this casserole has become one of our favorite weeknight traditions.

Required Tools

Large pot, skillet, mixing bowls, whisk, 23x33 cm (9x13 inch) baking dish, measuring cups and spoons

Allergen Information

Contains: Wheat (noodles, breadcrumbs), Milk (cheese, milk, sour cream, soup), Fish (tuna), Soy (possible in soup and fried onions)

Nutritional Information

Per serving: Calories 430, Total Fat 18 g, Carbohydrates 43 g, Protein 25 g

A close-up of creamy Tuna Noodle Casserole, topped with crunchy fried onions, ready to be served. Pin
A close-up of creamy Tuna Noodle Casserole, topped with crunchy fried onions, ready to be served. | quickcrav.com

This classic casserole is sure to please at any gathering. Enjoy every creamy, crispy bite!

Recipe Q&A

Can I use fresh onions instead of fried onions for the topping?

Fresh onions can be used but won’t provide the same crispy texture. Fried onions add a delightful crunch that complements the creamy casserole.

What type of noodles work best in this bake?

Wide egg noodles are preferred for their ability to hold sauce well and provide a tender yet firm bite when baked.

Is it possible to add vegetables to this dish?

Absolutely. Frozen peas and mushrooms are included, but feel free to add other sautéed vegetables like bell peppers or spinach for variety.

How can I achieve a golden crispy topping?

Mixing melted butter with breadcrumbs before topping and using fried onions ensures a golden, crunchy layer after baking.

Can this dish be prepared ahead of time?

Yes. Assemble the bake and refrigerate before baking. Allow extra baking time if baked straight from the fridge.

Are there flavor variations I can try?

Adding a splash of lemon juice or hot sauce to the sauce can brighten flavors, while substituting tuna with salmon or chicken offers variation.

Tuna Noodle Casserole Crispy Onion

Comforting baked noodles and tuna with savory vegetables and golden crispy onion topping.

Crock-Pot 7 Quart Oval Manual Slow Cooker

Crock-Pot 7 Quart Oval Manual Slow Cooker, Stainless Steel (SCV700-S-BR)

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Rubbermaid Brilliance Food Storage Containers

Rubbermaid Brilliance Food Storage Containers BPA Free Airtight Lids Set of 5 (3.2 Cup)

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Preparation time
20 min
Cooking time
35 min
Total time
55 min


Difficulty Easy

Origin American

Yield 6 Servings

Dietary specifications None specified

Ingredients

Pasta

01 12 oz wide egg noodles

Protein

01 2 cans (6 oz each) tuna in water, drained

Vegetables

01 1 cup frozen peas
02 1 small onion, finely chopped
03 2 cloves garlic, minced
04 1 cup sliced mushrooms (optional)
05 2 tbsp chopped fresh parsley

Sauce

01 1 can (10.5 oz) condensed cream of mushroom soup
02 1 cup whole milk
03 1/2 cup sour cream
04 1 cup shredded cheddar cheese
05 1/2 tsp black pepper
06 1/2 tsp salt
07 1/2 tsp dried thyme (optional)

Topping

01 1 1/2 cups crispy fried onions (store-bought)
02 1/2 cup breadcrumbs
03 2 tbsp melted butter

Instructions

Step 01

Preheat Oven: Preheat the oven to 375°F. Lightly grease a 9x13 inch baking dish.

Step 02

Cook Noodles: Boil the egg noodles in salted water until al dente, then drain and set aside.

Step 03

Sauté Vegetables: In a skillet over medium heat, sauté chopped onion and garlic in oil until softened, about 3 minutes. Add mushrooms if using and cook until tender.

Step 04

Prepare Sauce: Combine condensed cream of mushroom soup, whole milk, sour cream, shredded cheddar, salt, pepper, and thyme in a large bowl. Whisk until smooth.

Step 05

Mix Ingredients: Add cooked noodles, drained tuna, peas, sautéed vegetables, and fresh parsley to the sauce mixture. Gently stir to combine evenly.

Step 06

Assemble Casserole: Transfer the mixture into the prepared baking dish, spreading evenly.

Step 07

Add Topping: Toss breadcrumbs with melted butter, then sprinkle over the casserole. Top evenly with crispy fried onions.

Step 08

Bake: Bake uncovered for 25 to 30 minutes until bubbling and golden brown on top.

Step 09

Rest and Serve: Allow to rest for 5 minutes before serving to set.

Required equipment

  • Large pot
  • Skillet
  • Mixing bowls
  • Whisk
  • 9x13 inch baking dish
  • Measuring cups and spoons

Allergen information

Review each ingredient to identify potential allergens and seek advice from a healthcare professional if uncertain.
  • Contains wheat (noodles, breadcrumbs), milk (cheese, milk, sour cream, soup), fish (tuna), and possibly soy (in soup and fried onions). Verify labels for allergen sensitivity.

Nutritional values (per serving)

These details are offered as a general guide only and shouldn't replace professional medical guidance.
  • Calories: 430
  • Fat: 18 g
  • Carbs: 43 g
  • Protein: 25 g