I have to admit, classic comfort food like this tuna noodle casserole recipe holds a special place in my heart. But let’s be honest, the canned soup versions can be pretty bland. This upgraded version has a creamy, vibrant red pepper cream sauce and a super crispy panko topping that makes all the difference for a high-protein, family-friendly dinner. Itโs easy, hearty, and uses mostly pantry staples in a fresh way to transform a simple meal into something special. This family-friendly tuna and noodle casserole recipe will quickly become your new go-to.

Ingredients
- Wide Egg Noodles: 340 g (12 ounces). Choose wide noodles for maximum sauce coating and a hearty texture. Cook to al dente according to package directions; do not overcook as they will continue cooking in the oven. Drain thoroughly after cooking.
- Unsalted Butter: 60 ml (4 tablespoons). Used for creating the roux and building the flavor base. Unsalted butter allows you to control the seasoning of the dish.
- Yellow Onion: 1 medium, finely diced. Forms the aromatic foundation of the sauce. Ensure the dice is fine so the onion softens completely and blends seamlessly into the creamy base; cook until translucent, about 5-7 minutes.
- Garlic: 3 cloves, minced. Adds savory depth to the sauce. Add during the last minute of cooking the onion to prevent burning and keep the flavor sweet.
- All-Purpose Flour: 60 g (1/2 cup). The key thickener for the creamy sauce base. Whisk thoroughly with the butter and cook for a minute or two to remove the raw flour taste.
- Vegetable Broth and Whole Milk: 480 ml (2 cups) each. The liquid base for the sauce. Using whole milk adds extra richness and creaminess. For a richer flavor, swap vegetable broth for chicken broth.
- Jarred Roasted Red Peppers: 225 g (8 ounces), thoroughly drained and patted dry. These provide the smoky sweetness and vibrant color for the sauce. Canned red peppers can also be used if jarred are unavailable.
- Smoked Paprika and Ground Cayenne Pepper: 15 ml (1 tablespoon) smoked paprika, and 2 ml (1/2 teaspoon) ground cayenne pepper (optional). Smoked paprika adds a deep, savory, smoky flavor to the sauce. The cayenne pepper adds a very mild kick; omit for a truly mild, kid-friendly casserole.
- Canned Tuna: 4 cans (each 142 g / 5 ounces) in water, thoroughly drained and flaked. Use high-quality tuna packed in water for a clean flavor and flaky texture. Ensure all liquid is pressed out of the tuna to prevent a watery casserole.
- Frozen Green Peas: 225 g (1.5 cups), thawed. Adds a touch of sweetness, color, and vegetable content to the casserole. Thawing them before adding ensures they heat evenly.
- Shredded Sharp Cheddar Cheese: 200 g (2 cups). Provides a sharp, tangy flavor that complements the red pepper and tuna. Shred from a block for a superior melt. For a milder flavor, substitute with Monterey Jack or Colby cheese.
- Panko Breadcrumbs: 80 g (1 cup). The ideal topping for maximum crunch and a superior crust. Panko creates a much crispier result than regular breadcrumbs.
- Fresh Flat-Leaf Parsley: 5 g (1/4 cup), finely chopped. Adds brightness and fresh flavor to finish the dish; use some for garnish.
- Salt and Freshly Ground Black Pepper: To taste. Season generously to bring out the flavor of the other ingredients. Adjust based on the salt content of your broth and cheese.
Optional (plan-ahead): If youโre shopping for the week, I put this into a 4-Week Meal Plan + Grocery Lists so dinnerโs already decided before your day gets busy.
Instructions
- Prep the ingredients and noodles
Preheat your oven to 190ยฐC (375ยฐF) and lightly grease a 23×33 cm (9×13 inch) baking dish. Cook the wide egg noodles in boiling, salted water until they are al dente; this is typically 1-2 minutes less than package directions. Drain them thoroughly and set aside. - Make the creamy roux base
In a large, deep skillet or Dutch oven, melt the butter over medium heat. Add the finely diced onion and sautรฉ for 5-7 minutes until softened and translucent, then add the minced garlic and cook for an additional minute until fragrant. Sprinkle the all-purpose flour over the onion mixture and cook for 1-2 minutes, stirring constantly to form a roux and eliminate the raw flour taste. - Create the smoky red pepper cream sauce
Gradually whisk the vegetable broth into the roux mixture until it is fully incorporated and smooth. Slowly whisk in the whole milk, then continue to simmer and whisk constantly for 5-7 minutes until the sauce thickens significantly. While the sauce thickens, transfer 120 ml (1/2 cup) of the sauce to a blender along with the drained roasted red peppers, smoked paprika, and cayenne pepper (if using). Blend until completely smooth. - Combine and transfer to baking dish
Stir the red pepper puree from the blender back into the main cream sauce in the skillet. Add the flaked tuna, thawed green peas, shredded sharp cheddar cheese, and the cooked egg noodles to the sauce. Season generously with salt and freshly ground black pepper, and add the chopped fresh parsley. Gently stir to combine all ingredients evenly for this hearty tuna casserole recipe. If the mixture seems too dry, I add 1-2 tablespoons of milk at this stage to make sure it stays creamy during baking. - Bake the casserole
Pour the full tuna noodle mixture into the prepared baking dish and spread evenly. Sprinkle the panko breadcrumbs over the top in an even layer. Bake for 25-30 minutes, or until the sauce is bubbly around the edges and this easy tuna and noodle casserole recipe has a golden brown topping. - Rest and garnish before serving
Remove the tuna and noodle casserole from the oven and allow it to rest for 10 minutes; this resting period allows the sauce to set and prevents a runny casserole. Serve portions and drizzle with the reserved red pepper puree for visual flair, then scatter additional fresh chopped parsley evenly over the top for a contrasting pop of green.
Customizing Your Casserole: Variations and Swaps
This tuna and noodle casserole recipe is flexible, allowing you to easily adjust ingredients based on what you have in the pantry or for specific dietary needs. Feel free to use these swaps to make this recipe your own family favorite.
Change up the protein
While tuna is classic, this recipe works beautifully with canned salmon for a richer flavor, shredded rotisserie chicken for an easy dinner idea, or even leftover cooked shrimp for a quick change. If using a different protein, ensure it is fully cooked and flaked before adding to the sauce mixture.
Add more vegetables
Sautรฉ 1 cup of sliced mushrooms, finely chopped broccoli florets, or a small bag of spinach (wilted down) along with the onion to increase the vegetable content and add extra nutrients. For a heartier meal, stir in some frozen corn or diced carrots during the final sauce preparation.
Alter the cheese profile
Substitute the cheddar with Monterey Jack for a milder, creamier melt, or add a handful of Parmesan for extra sharpness and depth. For a high-protein boost, try mixing in cottage cheese before baking; I find it adds extra creaminess without changing the overall flavor.

Making Casserole Ahead and Storage Tips
Make-ahead preparation
Prepare the entire casserole mixture in a baking dish, cover tightly with plastic wrap, and refrigerate for up to 24 hours. If preparing more than a day ahead (up to 3 days), omit the noodles until baking to prevent them from becoming mushy. Add the panko topping just before baking for maximum crunch.
Freezing instructions
To freeze, prepare the casserole (without the panko topping) in a freezer-safe dish, cover tightly with foil, and freeze for up to 3 months. Thaw completely in the refrigerator before adding the topping and baking as directed in the recipe. The sauce may separate slightly upon freezing and thawing, but will come back together when heated.
Reheating leftovers
Reheat individual portions in the microwave for speed, or cover and reheat in the oven at 175ยฐC (350ยฐF) for 15-20 minutes to retain more of the original texture. Adding a splash of milk or broth before reheating helps keep the casserole from drying out.
FAQs
Can I use other types of noodles besides egg noodles?
Yes, short pasta shapes like rotini, elbow macaroni, or penne can be used in this tuna and noodle casserole recipe. Just be sure to cook them al dente, as they will expand further during baking. I personally prefer wide egg noodles because they hold up best to the creamy sauce.
Can I use fresh tuna instead of canned?
Absolutely. You will need approximately 400-500 g (14-18 oz) of fresh tuna, cooked and flaked before adding to the sauce mixture. Pan-sear the tuna or bake it first, then break it apart into small flakes before combining with the other ingredients.
Will this casserole be spicy because of the cayenne pepper?
No, the recipe calls for only 1/2 teaspoon of cayenne, which adds a very mild hint of heat. If you are extremely sensitive to spice or feeding small children, simply omit the cayenne entirely for a truly mild, family-friendly meal. The smoked paprika provides more flavor than heat.
How do I make this tuna casserole gluten-free?
To adapt this tuna and noodle casserole recipe, use gluten-free noodles (be careful not to overcook them) and substitute the all-purpose flour in the roux with a gluten-free all-purpose blend. The panko topping can be replaced with gluten-free panko or crushed gluten-free crackers.
How do I get an extra crispy topping?
For maximum crunch, toss the panko breadcrumbs with 1-2 tablespoons of melted butter before sprinkling over the casserole. For an even crunchier finish, quickly pre-toast the panko in a pan first until golden brown, then sprinkle over the casserole and bake as directed.
How long does the leftover casserole keep in the fridge?
Store leftovers in an airtight container in the refrigerator for 3-4 days. This makes it a great option for healthy eating and quick meals during the week, as the flavors develop even further overnight. The casserole is also a high-protein snack option for busy schedules.
Conclusion
This easy tuna and noodle casserole recipe proves that weeknight comfort food can be both quick and packed with flavor, thanks to the smoky red pepper cream sauce that elevates this family-friendly meal. It’s time to retire the boring canned soup version and start making this new favorite tonight; save this recipe for a cozy night in by pinning it to your favorite Pinterest board.
Print
tuna and noodle casserole recipe
- Total Time: 55 minutes
- Yield: 8 servings 1x
- Diet: General
Description
A creamy, family-friendly tuna noodle casserole featuring a smoky roasted red pepper sauce and a crispy panko topping, offering a fresh update to the classic comfort food.
Ingredients
- 340 g wide egg noodles
- 60 ml unsalted butter
- 1 medium yellow onion, finely diced
- 3 cloves garlic, minced
- 60 g all-purpose flour
- 480 ml vegetable broth
- 480 ml whole milk
- 225 g jarred roasted red peppers, drained
- 15 ml smoked paprika
- 2 ml ground cayenne pepper (optional)
- 4 cans (142 g each) canned tuna, drained and flaked
- 225 g frozen green peas, thawed
- 200 g shredded sharp cheddar cheese
- 80 g panko breadcrumbs
- 5 g fresh flat-leaf parsley, chopped
- Salt and pepper, to taste
Optional (plan-ahead): If youโre shopping for the week, I put this into a 4-Week Meal Plan + Grocery Lists so dinnerโs already decided before your day gets busy.
Instructions
- Prepare Noodles and Dish: Preheat oven to 375ยฐF (190ยฐC) and grease a 9×13 inch baking dish. Cook egg noodles to al dente according to package directions, then drain thoroughly.
- Make the Roux Base: Melt butter in a large skillet over medium heat. Sautรฉ the diced onion for 5-7 minutes until soft. Add minced garlic and cook for 1 minute. Whisk in the flour and cook for 1-2 minutes until smooth to form a roux.
- Simmer Cream Sauce: Gradually whisk in the vegetable broth, followed by the whole milk. Simmer for 5-7 minutes, whisking constantly until the sauce thickens significantly.
- Blend Red Pepper Puree: Transfer 1/2 cup of the sauce to a blender. Add the drained roasted red peppers, smoked paprika, and cayenne pepper (if using). Blend until completely smooth, then return the puree to the skillet with the remaining sauce.
- Combine Ingredients: Add the flaked tuna, thawed green peas, shredded cheddar cheese, cooked noodles, and chopped parsley to the sauce. Season generously with salt and pepper, stirring gently to combine evenly. Add 1-2 tablespoons of milk if the mixture seems too dry.
- Bake and Serve: Pour the mixture into the prepared baking dish and spread evenly. Sprinkle panko breadcrumbs on top. Bake for 25-30 minutes, or until the sauce is bubbly and the topping is golden brown. Let rest for 10 minutes before serving.
Notes
Allow the casserole to rest for 10 minutes after baking to prevent a runny sauce. If the mixture appears too dry before baking, add 1-2 tablespoons of milk. Garnish with fresh parsley or reserved red pepper puree.
- Prep Time: 25 minutes
- Cook Time: 30 minutes
- Category: Main Dish
- Method: Baking
- Cuisine: American
Nutrition
- Serving Size: 1 serving
- Calories: 440 kcal
- Sugar: 8 g
- Sodium: 650 mg
- Fat: 17 g
- Saturated Fat: 10 g
- Unsaturated Fat: 4 g
- Trans Fat: 0 g
- Carbohydrates: 46 g
- Fiber: 4 g
- Protein: 25 g
- Cholesterol: 70 mg
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