Soups & Stews
Transforming a simple pantry staple into a comforting classic, this Campbell's mushroom soup tuna noodle casserole brings back the cozy flavors of childhood with every bite. The rich, creamy soup forms the perfect base for tender tuna, al dente noodles, and a golden cheese topping that adds irresistible crunch.
I first made this version after realizing how much easier it is to assemble than traditional recipes—no complicated layering required.
What makes this recipe stand out is its simplicity without sacrificing flavor. You'll combine just 10 ingredients in a single pot before baking, resulting in a dish that's hearty enough for a family dinner but quick enough for weeknight comfort.
The key is balancing the creaminess of the soup with the protein-rich tuna and the satisfying texture of the cheese topping, all baked to perfection in under an hour.
The result is a casserole with layers of flavor—savory mushrooms, tender tuna, and cheesy crunch—that disappears faster than you can say "comfort food." The best part? It reheats beautifully, making it ideal for meal prep or leftovers.
Whether you're serving it to a crowd or treating yourself to a nostalgic meal, this recipe delivers restaurant-quality satisfaction with minimal effort.
For extra flair, consider adding fresh parsley or a sprinkle of paprika before baking. Serve with a side salad or crusty bread to complete the meal. Let's get started on this foolproof classic that's sure to become a family favorite.
Ingredients for campbell's mushroom soup tuna noodle casserole
Ten pantry staples transform into nostalgic comfort food in one pot.
| Ingredient | Amount | Notes |
|---|---|---|
| Campbell's Creamy Mushroom Soup 🍲 | 2 cans | Condensed, not ready-to-serve |
| Egg Noodles 🍝 | 2 cups | Uncooked, medium width |
| Canned Tuna in Water 🐟 | 1 can | Drained, not oil-packed |
| Milk 🥛 | ½ cup | Whole milk preferred |
| Sharp Cheddar Cheese 🧀 | 1 ½ cups | Shredded, not pre-shredded |
| Butter 🧈 | ½ cup | Unsalted, melted |
| All-Purpose Flour 🌾 | ¼ cup | For topping mix |
| Salt 🧂 | ½ tsp | Kosher or sea salt |
| Black Pepper 🌶️ | ¼ tsp | Freshly ground |
| Fresh Parsley 🌿 | ⅛ cup | Chopped, optional garnish |
The Campbell's soup is the backbone here—grab the condensed version (not the ready-to-serve kind) for that perfect creamy texture. Trader Joe's and Walmart usually have it in the soup aisle, but check the back of the shelf if you can't find it. The egg noodles should be medium-width (about 1/4-inch thick)—those thin spaghetti noodles won't hold up as well. For the tuna, Store Brand works just fine, but if you want extra flavor, Wild Planet or StarKist are solid picks. The milk matters too—whole milk gives you that rich, creamy finish, but 2% works in a pinch if that's what you've got.
No sharp cheddar? Colby Jack or Monterey Jack melts just as nicely, though the flavor won't be quite as bold. Short on milk? Half-and-half or heavy cream adds richness, but use half the amount. The butter should be unsalted—you're controlling the salt here. If you can't find unsalted, just reduce the added salt slightly. For the topping, pre-shredded cheese gets gummy when baked, so grate your own from a block if possible. The parsley is totally optional, but it adds a fresh pop of color and brightness that makes the dish feel special (even if it's just reheated leftovers).
This casserole reheats like a dream—honestly, it tastes even better the second day once everything melds together. Keeps in the fridge for 4-5 days covered, and freezes beautifully for up to 3 months. I like to portion mine into two 9x9-inch pans so I can bake one and save the other for later. The cheese topping gets crispy when reheated, so if you're serving it straight from the fridge, pop it under the broiler for 2-3 minutes to restore that golden crunch.
Why You'll Love This Recipe
- Pantry-to-Plate Magic: I swear, this dish is the definition of "I have nothing but a can of tuna and a box of noodles" glory. Just dump the soup, stir in the drained tuna, add noodles—boom. The milk and cheese turn it from "meh" to "oh wow," and it’s ready before the kids even finish complaining about dinner.
- Cheesy Tuna Hug: That sharp cheddar melted on top? It’s like a warm, salty blanket over creamy mushroom soup and flaky tuna. The texture contrast—soft noodles, tender tuna, crispy cheese—is ridiculously satisfying. Honestly, I’ve made fancier things that didn’t hit this hard.
- Leftover Superstar: This casserole actually tastes better the next day. The flavors meld into this rich, comforting bowl that’s perfect for lunchboxes or a quick reheat. I’ve sent it to work with my husband, and he’s always back for seconds—proof it’s a keeper.
- Budget Dinner Win: Five ingredients, zero guilt. The canned tuna and boxed soup stretch into a full meal, and the cheese adds that "I cooked something" touch without breaking the bank. Between us? This is my go-to when I’m low on groceries but still want something that feels like a real dinner.
Step-by-step instructions for Campbell's mushroom soup tuna noodle casserole
This comforting classic comes together in one pot with minimal effort.
Cook the Egg Noodles Al Dente
Bring a large pot of salted water to a rolling boil. Add the 2 cups of egg noodles and cook according to package instructions until they're just barely al dente - about 1-2 minutes less than recommended. You want them firm enough to hold their shape when mixed with the other ingredients. Drain the noodles immediately and set them aside in a large mixing bowl.
Don't rinse the noodles after draining - the starch on their surface helps create that creamy texture we're after. I like to shake the colander vigorously to remove excess water, but leave those starches intact. This step ensures your casserole will have that perfect, velvety consistency rather than turning out dry.
Prepare the Creamy Mushroom Base
In the same pot you cooked the noodles (no need to wash it - those flavorful bits matter), melt the 0.5 cup of butter over medium heat. Once melted, stir in the 0.25 cup of all-purpose flour to create a roux. Cook for 1-2 minutes until the mixture smells nutty and forms a smooth paste.
Slowly whisk in the 0.5 cup of milk, stirring constantly to prevent lumps from forming. Let this mixture simmer gently for 2-3 minutes until it thickens slightly. Then carefully stir in the 2 cans of Campbell's Creamy Mushroom Soup and the 0.5 teaspoon of salt, mixing until completely smooth. The soup will warm through and become even creamier from the butter-flour mixture.
Combine All Ingredients
Add the drained egg noodles to the mushroom mixture and stir gently to coat them evenly. Fold in the drained 1 can of canned tuna in water, breaking up any large chunks with a fork. Sprinkle the 0.25 teaspoon of black pepper over everything and stir one final time to distribute it evenly.
Here's where it gets good - transfer the entire mixture to a greased 9x13-inch baking dish. The dish should be about 75% full - this allows for proper browning and prevents overflow. I like to use a rubber spatula to scrape every last bit from the pot into the dish for maximum flavor.
Top with Cheese and Bake
Sprinkle the 1.5 cups of shredded sharp cheddar cheese evenly over the top of the casserole. Use a fork to create small peaks in the cheese - this creates more surface area for browning. For extra crunch, you can also sprinkle a light layer of breadcrumbs if you have them, though it's not necessary with this recipe.
Bake uncovered at 375°F for 20-25 minutes until the cheese is golden brown and bubbly at the edges. You'll know it's done when the top has developed a nice crust and the edges pull away slightly from the dish. The internal temperature should reach 165°F when checked with a meat thermometer.
Rest and Garnish
Remove the casserole from the oven and let it rest for 5-10 minutes before serving. This resting period allows the cheese to set slightly and makes it easier to cut clean slices. The casserole will be hot - use oven mitts when handling the baking dish.
Garnish each serving with the 0.125 cup of chopped fresh parsley just before serving. The bright green color contrasts beautifully with the golden cheese topping and adds a fresh note to balance the richness. Serve immediately while the cheese is still bubbly and the noodles are warm - this casserole tastes best straight from the oven!
Pro Tips For Making Campbell'S Mushroom Soup Tuna Noodle Casserole
- Drain and rinse the tuna: The canned tuna in water comes packed in saltwater—skip rinsing, and you’ll end up with a dish that tastes like it’s swimming in a pool of brine. Drain it well, then give it a quick rinse under cold water to cut the saltiness. Trust me, your casserole won’t taste like a science experiment.
- Pre-cook the noodles until al dente: I learned this the hard way—overcooking the egg noodles turns them into mush, and no one wants a soggy casserole. Boil them for 2 minutes less than the package says, then drain and toss them with a drizzle of oil so they don’t stick together. They’ll finish cooking in the oven, and you’ll get that perfect bite every time.
- Stir in the milk first: The Campbell’s soup thickens when it hits heat, and if you dump in the milk last, you’ll end up with a lumpy, curdled mess. Mix the milk into the soup before adding it to the baking dish—this keeps the texture smooth and creamy. No one wants to scrape globs of soup off their fork.
- Add cheese in layers: Sprinkle half the cheddar on top of the noodle-tuna-soup mix, then add the rest after the first 10 minutes of baking. This ensures the cheese melts evenly and doesn’t turn into a sad, greasy puddle at the bottom. (Yes, I’ve seen it happen—don’t ask.) The top layer will be golden and gooey, just like it should be.
Common mistakes when making great campbell's mushroom soup tuna noodle casserole
Overcooking the Noodles
One of the most common mistakes is cooking the egg noodles until they're fully soft—this leads to a mushy, unappetizing casserole. I always aim for al dente with about 1-2 minutes less than the package recommends.
The starch on slightly firm noodles helps create that creamy texture when mixed with the soup. 🍲
Skipping the Butter-Flour Mixture
Many recipes call for just the Campbell's soup and milk, but that butter-flour roux is what transforms this dish from basic to rich and velvety. The roux creates a silky base that coats the noodles perfectly.
I never skip it—it’s the secret to that restaurant-quality texture. The flour also helps thicken the mixture slightly before baking.
Overfilling the Baking Dish
A packed 9x13-inch dish will overflow during baking, creating a mess and preventing proper browning. Fill it only 75% full to allow room for expansion. I’ve learned this the hard way—once, I ended up with soup all over my oven racks!
A greased dish also helps prevent sticking, so don’t skip that step.
Using Pre-Shredded Cheese
Pre-shredded cheese contains anti-caking agents that make it gummy when melted. For that perfect golden, crispy topping, always use block cheese that you shred yourself. Sharp cheddar is ideal, but if you’re in a pinch, Colby Jack works too. Just grate it fresh—it makes all the difference. 🧀
Baking Without Resting
Cutting into the casserole immediately after baking can cause the cheese to slide off and the noodles to fall apart. Always let it rest for 5-10 minutes before serving. This allows the cheese to set slightly and the juices to redistribute, giving you clean, neat slices. Patience here is key!
Ignoring the Cheese Peaks
Sprinkling cheese evenly is fine, but creating small peaks with a fork increases the surface area for browning, giving you that coveted golden crust. I like to drag the fork through the cheese in a crisscross pattern—it’s a little extra effort that makes a big visual and textural difference.
Don’t skip this step if you want that bakery-style finish!
Nutrition facts
Frequently asked questions
Can I make this casserole without egg noodles?
Swap the egg noodles for 2 cups of cooked elbow macaroni, penne, or even 1.5 cups of cooked rice. Just make sure to cook them al dente and drain well. For a lower-carb option, try zucchini noodles (zoodles) or cauliflower rice, though the texture will be lighter.
Why does my casserole turn out watery?
Watery results usually happen when the noodles are overcooked or the baking dish isn't hot enough. Always cook noodles 1-2 minutes less than package instructions and preheat your oven to 375°F. If it still seems soupy, bake for 5-10 extra minutes uncovered to evaporate excess moisture.
Can I add other proteins besides tuna?
Yes! For extra heartiness, try 1 cup of cooked chicken breast (diced), 1 can of drained chickpeas, or even 1.5 cups of cooked shrimp. Just reduce the milk to 0.25 cup to maintain the creamy consistency. The Campbell's soup base will still shine through.
How do I reheat leftovers without drying it out?
Cover the casserole with foil and bake at 350°F for 15-20 minutes until warmed through. For a crispy topping, remove the foil for the last 2-3 minutes. Microwaving works too—cover with a damp paper towel and heat in 1-minute intervals on high, stirring between each.
What's the best way to make this vegetarian?
Replace the tuna with 1.5 cups of cooked lentils or 1 can of white beans (drained). For extra richness, stir in 0.5 cup of crumbled feta or goat cheese with the noodles. The Campbell's mushroom soup still provides that deep umami flavor that vegetarians love.