Introduction
Tuna Casserole is a classic, comforting dish, perfect for family dinners, potlucks, or cozy weeknight meals. This creamy, savory casserole combines tender egg noodles, flaky tuna, and a rich mushroom sauce, topped with a golden, crunchy layer. Presented in a white ceramic baking dish, garnished with fresh parsley or a sprinkle of breadcrumbs, this casserole offers a warm, inviting aesthetic that evokes nostalgia. This recipe delivers a traditional version, adaptable for dietary preferences, and ideal for home cooks seeking a hearty, crowd-pleasing dish that celebrates simple, wholesome flavors.
Ingredients
For the Tuna Casserole:
- 12 oz egg noodles
- 2 cans (5 oz each) of tuna in water, drained and flaked
- 1 tbsp olive oil
- 1 small onion, diced
- 2 cloves garlic, minced
- 8 oz cremini or button mushrooms, sliced
- 2 tbsp unsalted butter
- 2 tbsp all-purpose flour
- 2 cups whole milk
- 1 cup chicken or vegetable broth
- 1 cup frozen peas
- 1 cup shredded cheddar cheese, divided
- 1 tsp salt
- 1/2 tsp black pepper
- 1/2 tsp dried thyme
- 1 cup crushed potato chips or breadcrumbs (for topping)
For Serving:
- Optional: Chopped fresh parsley, extra cheese
- Suggested Accompaniments: Green salad, steamed broccoli
- Suggested Pairings: Iced tea, white wine
- Suggested Aesthetic: Serve in a white ceramic baking dish
- Suggested Equipment: Large pot, large skillet, 9×13-inch baking dish, mixing bowls, whisk, spatula
Step-by-Step Process
- Cook Noodles: Preheat oven to 375°F (190°C). Cook egg noodles in a large pot of boiling salted water according to package instructions until al dente (about 6-8 minutes). Drain and set aside.
- Sauté Vegetables: In a large skillet, heat olive oil over medium heat. Add onion and sauté for 3-4 minutes until softened. Add garlic and mushrooms; cook for 5-6 minutes until mushrooms release their liquid and soften.
- Make Creamy Sauce: Add butter to the skillet and melt. Sprinkle in flour and stir for 1-2 minutes to form a roux. Slowly whisk in milk and broth, stirring constantly to avoid lumps. Cook for 3-4 minutes until thickened. Stir in peas, 1/2 cup cheddar cheese, salt, pepper, and thyme. Taste and adjust the seasoning with additional salt or thyme for a balanced flavor.
- Combine Ingredients: In a large mixing bowl, combine cooked noodles, flaked tuna, and creamy sauce. Mix gently until evenly coated.
- Assemble Casserole: Transfer the mixture to a greased 9×13-inch white ceramic baking dish. Sprinkle the remaining 1/2 cup of cheddar cheese and crushed potato chips or breadcrumbs over the top.
- Bake: Bake for 20-25 minutes until bubbly and the topping is golden brown.
- Serve: Let cool for 5 minutes. Serve warm from the white ceramic baking dish, garnished with fresh parsley or extra cheese. Pair with a green salad, steamed broccoli, iced tea, or white wine.
Tips for Better Tuna Casserole
- Cook noodles al dente to prevent mushiness after baking; rinse briefly to stop cooking.
- Taste the sauce before combining to balance seasoning, as broth and tuna vary in saltiness.
- Use a white ceramic baking dish for even baking and an elegant presentation.
- Drain the tuna well to avoid excess liquid in the casserole.
- Crush potato chips or breadcrumbs finely for a uniform, crunchy topping.
- Add cheese to the topping sparingly to avoid overpowering the dish.
- Make ahead: Assemble the casserole (without topping) and refrigerate up to 1 day; add topping and bake when ready.
- Enhance aesthetic: Present in a white ceramic baking dish with vibrant parsley for a cozy, inviting look.
Variations and Customization
- Vegetarian Tuna Casserole: Replace tuna with 1 can (15 oz) chickpeas or 1 cup sautéed zucchini; use vegetable broth.
- Vegan Tuna Casserole: Use plant-based milk, vegan butter, and dairy-free cheese; replace tuna with mashed chickpeas or hearts of palm.
- Gluten-Free Tuna Casserole: Use gluten-free egg noodles and flour; ensure potato chips or breadcrumbs are gluten-free certified.
- Low-Fat Tuna Casserole: Use skim milk, reduce butter to 1 tbsp, and use low-fat cheese.
- Spicy Tuna Casserole: Add 1/4 tsp red pepper flakes or 1 tbsp diced jalapeño with the mushrooms.
- Mediterranean Tuna Casserole: Add 1/2 cup diced sun-dried tomatoes and 1/4 cup crumbled feta; replace thyme with oregano.
- Cheesy Tuna Casserole: Increase cheese to 1.5 cups and add 1/4 cup grated Parmesan to the sauce.
- Broccoli Tuna Casserole: Replace peas with 1 cup steamed broccoli florets for a greener twist.
Storage and Serving Tips
- Store leftovers in an airtight container in the fridge for up to 4 days; reheat in the oven at 300°F for 15 minutes or microwave for 1-2 minutes.
- Freeze the baked casserole for up to 2 months in an airtight container; thaw in the fridge overnight and reheat, adding fresh topping if soggy.
- Serve warm for the best flavor; avoid keeping at room temperature for over 2 hours due to dairy and fish content.
- Use leftovers in stuffed peppers or as a filling for baked potatoes.
- Pair with a green salad or steamed vegetables to complement the creamy richness.
- Present in a white ceramic baking dish with parsley or extra cheese for a warm, nostalgic charm.
Nutritional Information
Based on 6 servings (1.5 cups each):
- Calories: 450 kcal
- Total Fat: 22g
- Saturated Fat: 10g
- Trans Fat: 0g
- Cholesterol: 90mg
- Sodium: 780mg
- Total Carbohydrates: 42g
- Dietary Fiber: 4g
- Sugars: 6g
- Protein: 22g
- Vitamin A: 15% Daily Value
- Vitamin C: 10% Daily Value
- Calcium: 20% Daily Value
- Iron: 15% Daily Value
Note: Values vary by brand. Moderate in sodium; try low-sodium broth or tuna. Pair with vegetables for balance.
Conclusion
This Tuna Casserole recipe offers a hearty, nostalgic dish, perfect for any occasion, transforming simple ingredients into a comforting classic. Its straightforward preparation and warm presentation make it a favorite. The creamy noodles, flaky tuna, and crunchy topping delight every bite. It’s sure to be a cherished recipe, loved for its wholesome, retro appeal.

Tuna Casserole Recipe: Hearty and Nostalgic
Ingredients
- 12 oz egg noodles
- 2 cans 5 oz each of tuna in water, drained
- 1 tbsp olive oil
- 1 small onion diced
- 2 cloves garlic minced
- 8 oz cremini mushrooms sliced
- 2 tbsp unsalted butter
- 2 tbsp all-purpose flour
- 2 cups whole milk
- 1 cup chicken or vegetable broth
- 1 cup frozen peas
- 1 cup shredded cheddar cheese divided
- 1 tsp salt
- ½ tsp black pepper
- ½ tsp dried thyme
- 1 cup crushed potato chips or breadcrumbs
- Optional: Parsley extra cheese
- Suggested Pairings: Green salad iced tea
Instructions
- Preheat oven to 375°F; cook noodles al dente, then drain.
- Heat oil in skillet; sauté onion 3-4 min, garlic 1 min, mushrooms 5-6 min.
- Add butter, flour; whisk in milk, broth. Cook until thickened. Add peas, 1/2 cup cheese, salt, pepper, and thyme. Taste and adjust the seasoning.
- Mix noodles, tuna, and sauce; transfer to a greased 9x13-inch white ceramic baking dish.
- Top with 1/2 cup cheese, chips, or breadcrumbs. Bake 20-25 min.
- Cool 5 min; serve in a baking dish with parsley, salad, and iced tea.
Notes
- Cook noodles al dente.
- Store in the fridge for 4 days or freeze for 2 months.
- Try vegan or gluten-free variations.
- Pair with broccoli.






