Name: Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe
Prep time: 20 min
Cook time: 30 min
Total time: 50 min
Cuisine: American
Ingredients: 12 oz pasta (egg noodles, rotini, macaroni, or any other short noodle); 3 tbsp butter; 1 small onion, diced; ½ tbsp minced garlic; 3 tbsp flour; 2¼ cups milk; ½ tsp smoked paprika; ½ tsp onion powder; 1 tsp salt; ½ tsp black pepper; 3 cans (5 oz each) tuna; 1 cup frozen peas; 1 cup fresh spinach, chopped; 1½ cups shredded cheddar cheese; 1 cup panko breadcrumbs; 3 tbsp extra virgin olive oil OR melted butter; ½ cup shredded cheddar cheese; ½ cup grated Parmesan cheese (optional)

Jump to Recipe· 3.9 from 49 reviews

If you’ve ever longed for a warm, satisfying dish that feels like a big, cozy hug, then you’re going to adore this Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe. It’s a delicious twist on a classic comfort food favorite, made entirely from fresh ingredients without relying on canned soups, which means every bite bursts with fresh flavors and rich creaminess. Whether you’re feeding family or craving some nostalgic goodness for yourself, this casserole promises a creamy, cheesy, flavorful experience that’s nothing short of pure comfort on a plate.

Ingredients You’ll Need

A rectangular glass baking dish filled with a golden brown baked casserole that has a crispy, crunchy top layer of toasted breadcrumbs and melted cheese. The surface is uneven with small browned spots and hints of orange melted cheese visible under the breadcrumbs. A wooden spoon rests inside the dish on the upper left corner, partially covered by the topping. The casserole layers underneath have hints of creamy texture with bits of herbs peeking through near the sides. The dish is set on a white marbled surface with green spinach leaves and a decorative white beaded trim visible on the left side. Photo taken with an iphone --ar 4:5 --v 7

To make this casserole shine, you only need a handful of simple and wholesome ingredients. Each one is carefully chosen to bring that perfect balance of creaminess, cheesiness, and texture that makes this dish so irresistible.

12 oz pasta (egg noodles, rotini, macaroni, or any other short noodle): The hearty base that absorbs all the creamy sauce and tuna goodness.

3 tbsp butter: Adds richness and a silky start to the homemade sauce.
1 small onion, diced: Brings sweetness and a subtle crunch to the creamy mix.
½ tbsp minced garlic: Gives a flavor boost without overpowering the dish.

3 tbsp flour: The thickening agent that turns milk into the luscious sauce.
2¼ cups milk: Creates the creamy texture that coats every noodle perfectly.
½ tsp smoked paprika: Lends a warm, smoky note that adds depth of flavor.

½ tsp onion powder: A subtle enhancer that complements the fresh onion beautifully.
1 tsp salt: Balances the flavors and brings out the natural taste of the tuna.
½ tsp black pepper: Adds just a hint of heat and sharpness.

3 cans (5 oz) tuna: Provides the protein punch with tender, flaky fish.
1 cup frozen peas: Pops of sweetness and vibrant color throughout the dish.
1 cup fresh spinach, chopped: Adds freshness and a nutritious touch that blends right into the casserole.

1½ cups shredded cheddar cheese: The creamy, melty heart of this cheesy casserole.
Topping: Toasty crispy topping made of 1 cup panko breadcrumbs, 3 tbsp extra virgin olive oil or melted butter, ½ cup shredded cheddar cheese, and optional ½ cup grated Parmesan for an extra kick.

How to Make Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe

Step 1: Cook the Pasta

Start by filling a large pot with water, bringing it to a rolling boil, and cooking your choice of pasta according to package instructions until it’s just al dente. The noodles need to be tender enough to absorb the creamy sauce, but still firm enough to hold their shape. Drain and set aside to cool slightly while you prepare the sauce.

Step 2: Prepare the Creamy Sauce

Melt the butter in a large skillet or saucepan over medium heat. Toss in the diced onion and sauté for 3 to 4 minutes until they’re sweet and translucent; these little caramelized morsels make a huge flavor difference. Stir in the minced garlic and cook for an additional minute, letting those aromas build. Then sprinkle the flour over the butter and onions, stirring constantly to cook out the raw flour taste for about one minute. Slowly whisk in the milk, keeping the mixture smooth as it thickens into a beautiful, velvety sauce over the next 3 to 5 minutes. Finally, whisk in the smoked paprika, onion powder, salt, and black pepper. Once everything is combined, turn off the heat.

Step 3: Combine Tuna, Veggies, and Cheese

Gently fold the drained tuna, frozen peas, chopped spinach, cooked pasta, and 1½ cups of shredded cheddar cheese into your sauce. This careful stirring ensures every bite is packed with flavor and that the cheese melts evenly throughout, making this dish wonderfully cheesy and comforting.

Step 4: Assemble the Casserole

Spray a 9×13-inch baking dish with nonstick cooking spray to prevent sticking. Transfer your tuna noodle mixture into the dish and spread it out evenly. Sprinkle the remaining ½ cup cheddar cheese over the top for an extra cheesy finish. Then mix your breadcrumb topping by combining panko breadcrumbs with olive oil or melted butter, shredded cheddar cheese, and the optional Parmesan, sprinkling this golden mixture evenly across the surface. This topping adds such a perfect crunch to contrast with the creamy interior.

Step 5: Bake to Perfection

Pop the casserole in a preheated 375 degrees Fahrenheit oven and bake for 25 to 30 minutes, until the dish is bubbling around the edges and the topping turns a gorgeous golden brown. If you’re craving a little extra crunch, switch to the broiler for the final 1 to 2 minutes—but watch carefully to avoid burning. Let your casserole rest for about 5 to 10 minutes before serving to allow it to set up beautifully.

How to Serve Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe

The dish is placed on a white square plate with rounded edges, filled with a golden-brown baked pasta mix with a crispy, crumbly topping. The layers show a mix of creamy yellow pasta, bright green peas, and small bits of cooked onion and spinach scattered evenly, giving a colorful texture. The top layer is crunchy and browned, with a rough texture from the toasted crumbs. The plate sits on a white marbled surface, and there is a silver fork on the right edge of the plate. Photo taken with an iphone --ar 4:5 --v 7

Garnishes

To elevate the presentation and add fresh pops of flavor, consider sprinkling chopped fresh parsley or chives on top right after baking. A light drizzle of a lemony aioli or a dollop of sour cream also works wonders, cutting through the richness with a tangy zing. These small touches bring color and bright notes that balance this creamy, cheesy feast perfectly.

Side Dishes

This casserole is pretty hearty on its own, but pairing it with a crisp green salad tossed in a light vinaigrette or roasted seasonal vegetables will round out the meal nicely. Steamed broccoli or a simple cucumber salad with fresh dill can add refreshing crunch and freshness alongside the warm, cheesy casserole plate.

Creative Ways to Present

If you want to impress your guests or serve this at a potluck, consider making individual portions in ramekins or muffin tins. These single-serving casseroles bake up beautifully with crispy golden tops and are so charming on the table. Another fun idea is layering the casserole in clear glass dishes to show off the colorful layers of green spinach, bright peas, and golden cheesy topping.

Make Ahead and Storage

Storing Leftovers

This homemade cheesy tuna noodle casserole keeps beautifully in the refrigerator for up to 3 to 4 days. Simply cover it tightly with plastic wrap or an airtight lid, and you’ll have ready-made comfort food waiting after a busy day.

Freezing

You can absolutely freeze this casserole for up to 2 months. For best results, assemble the casserole without baking, cover tightly with plastic wrap and aluminum foil, then freeze. When you’re ready to enjoy it, bake it straight from frozen; just add extra baking time to ensure it’s heated through and bubbly.

Reheating

To reheat leftovers, pop a portion in the oven at 350 degrees Fahrenheit for about 15 to 20 minutes until warmed through, or microwave on medium power, stirring occasionally to maintain that luscious creaminess. If the topping loses some crunch, a quick broil can revive it beautifully.

FAQs

Can I use other types of cheese in this recipe?

Absolutely! While cheddar cheese is classic and melts beautifully, feel free to experiment with Monterey Jack, Colby, or even a sharp Gruyère for a different flavor profile. Just ensure the cheese you choose melts well to keep that creamy texture.

Is it necessary to use fresh spinach?

Fresh spinach adds nice color and nutrients, but if you don’t have any on hand, frozen spinach (thawed and thoroughly drained) works perfectly as well. It blends right into the casserole without affecting flavor.

Can I make this casserole vegan or dairy-free?

To make a dairy-free or vegan version of this Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe, you could swap the dairy ingredients for plant-based alternatives like almond or oat milk, vegan butter, and a plant-based cheese substitute. For the tuna, consider using a chickpea or jackfruit blend for a similar texture.

What’s the best pasta to use in this recipe?

Short pasta shapes like egg noodles, rotini, or macaroni are ideal because they hold the sauce well and provide a satisfying bite. These shapes mix wonderfully with the tuna and veggies, ensuring a consistent texture throughout.

Can I add more vegetables?

Definitely! This recipe is versatile, so feel free to sneak in extra veggies like diced mushrooms, bell peppers, or carrots. Just sauté them with the onions to soften before making your sauce for the best flavor integration.

Final Thoughts

There’s something truly special about a homemade dish that combines nostalgia with fresh, wholesome ingredients, and this Homemade Cheesy Tuna Noodle Casserole from Scratch Recipe absolutely delivers. It’s a heartwarming meal that’s straightforward to make yet delights every sense with its creamy texture, cheesy flavor, and comforting aroma. Give it a try and watch it become a beloved staple in your kitchen too!