Soups & Stews
This Campbell's mushroom soup tuna noodle casserole recipe brings back the comforting flavors of childhood dinners in one simple, creamy dish. The combination of rich mushroom soup, tender noodles, and flaky tuna creates a nostalgic meal that's surprisingly easy to make.
I've perfected this version to deliver that perfect balance of creamy cheese topping and savory filling, just like the classics you remember.
The beauty of this recipe lies in its simplicity—just a few pantry staples and 30 minutes of active prep time. You'll start by cooking the noodles, mixing in the Campbell's mushroom soup and tuna, then topping it all with a creamy cheese sauce that bakes until golden and bubbly.
The one-pan approach means less cleanup and more time enjoying your meal.
What you'll end up with is a creamy, cheesy casserole that's rich, satisfying, and packed with familiar flavors. The noodles soak up all the creamy mushroom soup, while the tuna adds a touch of ocean freshness.
The cheese topping turns golden and crispy, creating the perfect contrast to the tender filling below.
This dish is perfect for family dinners, potlucks, or even a cozy night in. The recipe scales easily, so you can make it for two or feed a crowd. Once you try this version, it'll quickly become a staple in your rotation. Let's get started with this comforting classic!
Ingredients for campbell's mushroom soup tuna noodle casserole
Pantry staples and three key ingredients—Campbell's mushroom soup, flaky tuna, and egg noodles—transform into nostalgic comfort.
| Ingredient | Amount | Notes |
|---|---|---|
| Campbell's Mushroom Soup (Cream of Mushroom) 🍄 | 2 cans | Condensed, not ready-to-serve |
| Egg Noodles 🍝 | 2 cups | Uncooked, medium width |
| Flaked Tuna 🐟 | 2 cans | Drained, in water |
| Sharp Cheddar Cheese 🧀 | 2 cups | Shredded, medium grate |
| Milk 🥛 | 1 cup | Whole milk preferred |
| Butter 🧈 | ½ cup | Unsalted, melted |
| All-Purpose Flour 🌾 | ¼ cup | For cheese sauce |
| Salt 🧂 | ½ tsp | Adjust to taste |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground |
| Garlic Powder 🧄 | ½ tsp | For extra flavor |
| Onion Powder 🧅 | ½ tsp | For depth |
| Green Onions 🧅 | 2 whole | Thinly sliced, for garnish |
The Campbell's mushroom soup is the heart of this dish—condensed is a must, not the ready-to-serve kind. Grab the cream of mushroom variety, not the chunky. For the tuna, flaked in water (not oil) gives the best texture—drain it well before mixing. Egg noodles are the classic choice here, but any short pasta works in a pinch. I always grab the medium-width noodles—they hold up better during baking. If you're short on time, pre-cook the noodles while the soup heats up, but don't overdo it—they'll finish cooking in the oven.
No Campbell's mushroom soup? Cream of celery soup plus 1 tbsp mushroom powder gets you close. Swapping tuna for chicken or shrimp changes the vibe but still works. For the cheese topping, Pepper Jack or Colby Jack adds a nice kick, but sharp cheddar is the nostalgic classic. The milk-butter sauce can be made ahead—just reheat it before pouring over the casserole. Green onions are optional but add a fresh pop of color. Pro tip: Toast the flour in the butter for 30 seconds before adding milk—it deepens the flavor instantly.
This casserole reheats beautifully—just cover it and bake at 350°F for 15 minutes. Leftovers keep for 4-5 days in the fridge, but honestly, it's even better the next day when all the flavors meld. For meal prep, portion into individual baking dishes before baking—just pop them in the oven when ready to serve. Freezes for up to 3 months, though the cheese topping might get a little soggy. Garnish with extra green onions right before serving for that restaurant touch.
Why You'll Love This Recipe
- One-Pot Magic: I swear by this recipe when I’m too tired to wash a second pot. Just dump the soup, noodles, tuna, and milk into one skillet—no measuring cups, no extra bowls. The creamy mushroom base melts into the noodles while the cheddar stretches into golden strings with zero effort.
- Umami Bomb: That canned mushroom soup is the MVP here—rich, earthy, and just salty enough to make the flaked tuna taste fancy. Add a splash of milk, and suddenly you’ve got a dish that’s creamy, cheesy, and packed with that deep, savory punch without any fancy prep.
- Lunchbox Hero: Between us, this is my go-to for packing leftovers. The noodles hold up perfectly, the tuna stays moist, and the cheddar adds a melty surprise when reheated. My kids actually ask for it, and honestly? That’s the real win.
- Budget Win: I made this last week for $8 and fed four people. Canned soup, cheap noodles, and tuna in water—it’s the kind of meal that stretches dollars without sacrificing flavor. Plus, the leftovers? Even better the next day.
Step-by-step instructions for Campbell's mushroom soup tuna noodle casserole
This one-pan wonder delivers ultimate comfort with minimal effort—creamy, cheesy, and packed with nostalgic flavors.
Cook the Egg Noodles Al Dente
Bring a large pot of water to a rolling boil and add the 2 cups of egg noodles. Cook them according to package instructions until they're 1 minute shy of al dente—you want them to finish cooking in the oven. Drain and set aside, reserving ½ cup of pasta water for later.
This step is crucial for texture—undercooked noodles will finish perfectly in the oven while maintaining their bite. Don't rinse the noodles, as the starch helps bind everything together. The reserved pasta water will come into play when making the creamy cheese topping.
Create the Creamy Cheese Sauce
In a large mixing bowl, combine the 2 cups of shredded sharp cheddar cheese, 0.5 cup of melted butter, 1 cup of milk, 0.25 cup of all-purpose flour, 0.5 teaspoon of salt, 0.25 teaspoon of black pepper, 0.5 teaspoon of garlic powder, and 0.5 teaspoon of onion powder. Whisk vigorously until smooth and fully combined.
This mixture should be thick but pourable—if it's too stiff, add 1-2 tablespoons of the reserved pasta water to loosen it. The sauce is the secret to that creamy, velvety topping that makes this casserole irresistible. Make sure the cheese is fully melted and incorporated before moving to the next step.
Combine All Ingredients in One Pan
In a large oven-safe skillet or baking dish, stir together the 2 cans of Campbell's mushroom soup (cream of mushroom), the drained flaked tuna, and the partially cooked egg noodles. Mix well to ensure everything is evenly distributed. The soup will help bind the ingredients together while adding that rich, savory depth.
Spread the mixture evenly across the bottom of the pan. This even distribution ensures everything cooks uniformly and nothing gets left behind when you add the cheese topping. The tuna will begin to warm through while the noodles finish cooking in the oven.
Assemble and Bake to Perfection
Pour the creamy cheese mixture evenly over the tuna noodle base, spreading it with a spatula to cover completely. Sprinkle the tops with the thinly sliced 2 whole green onions for a pop of color and freshness. Place the dish in a preheated 375°F oven and bake for 20-25 minutes until the cheese is bubbly and golden on top.
You'll know it's done when the edges are golden brown and the cheese has formed a thick, creamy layer on top. The internal temperature should reach 165°F when checked in the center. The residual heat will finish cooking the noodles while creating that perfect creamy texture we're after.
Rest and Serve with Confidence
Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This resting period allows the layers to set slightly, making it easier to slice and serve without losing that creamy cheese topping.
Serve immediately with crusty bread or a simple side salad. The creamy cheese topping should be rich and velvety, perfectly complementing the tender tuna and egg noodles. Each bite delivers that nostalgic comfort food experience with minimal effort—just like grandma used to make!
Pro Tips For Making Campbell'S Mushroom Soup Tuna Noodle Casserole
- Pre-Cook the Noodles: I learned this the hard way—dumping raw egg noodles into the soup mixture makes them gummy and undercooked. Boil them for 2 minutes less than package instructions, drain, and rinse with cold water to stop cooking. They’ll finish perfectly in the oven while the cheese melts.
- Drain the Tuna: Flaked tuna packs water like nobody’s business, and skipping this step turns your casserole into a sad, watery mess. Drain the tuna in a fine-mesh strainer for 5 minutes before mixing it in—your future self will notice the difference.
- Use Whole Milk: The recipe might call for milk, but if you’re using reduced-fat or non-dairy, the cheese won’t melt as smoothly. Whole milk adds richness and helps the cheddar cling to the noodles instead of clumping. (Yes, even if you’re watching calories.)
- Top with Extra Cheese: The recipe’s cheese measurement is generous, but if you really want that gooey, golden crust, sprinkle an extra ½ cup of shredded chedddar on top before baking. It’s the only way to guarantee that perfect, stretchy layer—no regrets.
Common mistakes when making perfect results
Overcooked Noodles
I’ve ruined this dish more times than I’d like to admit by overcooking the noodles before baking. If you boil them all the way to al dente, they’ll turn mushy in the oven.
The key is stopping them 1 minute early—they’ll finish cooking while absorbing the creamy mushroom soup. Trust me, this small detail makes all the difference in texture. 🍝
Skipping the Pasta Water
The reserved pasta water isn’t just for show—it’s the secret to a smooth, creamy cheese topping. If your sauce turns out too thick, add 1-2 tablespoons of that starchy water to loosen it.
Without it, the cheese sauce can become grainy or clump together. I’ve learned this the hard way when my first attempts came out like cheese glue instead of velvety perfection.
Uneven Cheese Distribution
Pouring the cheese sauce unevenly leads to dry spots in your casserole. Use a spatula to spread it completely and evenly over the tuna noodle mixture. I’ve seen people miss spots near the edges, leaving pockets of uncheesed noodles.
Pro tip: Start from the center and work your way out to ensure full coverage. 🧀
Baking at Wrong Temperature
Setting the oven too high (above 375°F) causes the cheese topping to brown too quickly before the filling is fully heated. Too low (below 350°F) leaves it undercooked and soggy.
Stick to 375°F for that perfect golden-brown crust while ensuring the center reaches 165°F. I’ve had to pull out underdone casseroles more times than I’d like to admit!
Not Resting Before Serving
Skipping the 5-10 minute rest after baking means you’ll end up with a runny, messy casserole. The cheese needs time to set slightly so it holds its shape when you slice it.
I’ve seen people dig in immediately only to watch their cheese topping slide off their plates. Patience here pays off with clean, neat servings.
Using Wrong Cheese Type
Not all cheddars are created equal! Sharp cheddar is the classic choice, but pre-shredded cheese contains anti-caking agents that prevent proper melting. Opt for block cheese that you shred yourself.
I’ve tried pre-shredded versions, and they always leave a gritty texture. Freshly shredded cheese makes all the difference in that creamy, smooth topping. 🧀✨
Nutrition facts
Frequently asked questions
Can I make this casserole ahead of time?
This dish actually tastes even better the next day. Assemble it completely (including the cheese topping) and refrigerate for up to 24 hours before baking. When ready to serve, bake at 375°F for 25-30 minutes—the extra time will help it reach peak creaminess. For meal prep, you can also portion it into individual baking dishes and freeze them for up to 3 months.
What if I don't have Campbell's mushroom soup?
No problem! You can substitute with cream of celery soup plus 1 tablespoon mushroom powder for similar flavor. Another option is to make a quick mushroom roux by sautéing 1 cup finely chopped mushrooms with 2 tablespoons butter, then adding 1 cup milk and 2 tablespoons flour to create a creamy base. The texture will be slightly different but still delicious.
How do I make this dish vegetarian?
Swap the tuna for 1 can of drained chickpeas or 1 cup of cooked lentils for protein. Add 1 teaspoon lemon juice and 1 teaspoon dried parsley to the filling for brightness. For extra richness, stir in ½ cup of crumbled feta cheese along with the noodles. The creamy topping will still be the star of the show!
Can I use a different type of pasta?
While egg noodles are traditional, you can use penne, rotini, or even small shells if that's what you have. For best results, stick with short pasta shapes that hold up well during baking. If using long noodles, cut them into 1-inch pieces first to prevent overcrowding. The key is ensuring they finish cooking properly in the oven.
Why did my cheese topping get oily?
This usually happens when the cheese isn't fully melted before baking or when too much butter is used. Make sure your cheese sauce is completely smooth and heated to 160°F before pouring it over the casserole. Also, reduce the butter to ¼ cup if you're concerned about oiliness. The pasta water trick helps prevent separation too!