It’s one of those days when you open the fridge and realize you’re out of milk but still crave something cozy and filling. This tuna casserole no milk steps in as an unexpected hero. Thanks to a creamy, dairy-free sauce made with coconut milk and vegetable broth, it delivers that familiar comfort without the usual ingredients. The texture is just right—silky noodles mingled with tender mushrooms and peas, all topped with a crispy layer of crushed potato chips that somehow makes everything feel like a warm hug.
I remember making this one evening, the kitchen smelling faintly of thyme and garlic while the oven did its magic. I got distracted halfway through by an old voicemail on my phone and might have left the chips on a bit longer than intended, but that crunch? Totally worth it. The first bite was a mix of surprise and relief: creamy, savory, with just enough texture to keep things interesting. It’s definitely not the traditional tuna casserole you grew up with, but that’s part of the charm.
- It’s creamy and comforting without any dairy, so it works well if you’re avoiding milk or just ran out.
- Using crushed potato chips as a topping adds an addictive crunch—though it’s less predictable than breadcrumbs, which can be a fun tradeoff.
- The dish comes together quickly, making it a solid choice for busy weeknights when you want something warm but don’t have hours to cook.
- Because the sauce is coconut milk-based, there’s a gentle hint of sweetness that balances the savory flavors nicely. It’s subtle, but noticeable.
If you’re a bit wary of coconut milk in savory dishes, I usually reassure people that it’s really mild here—more about creaminess than coconut flavor. And if you want to swap the potato chips for something else, crushed crackers or even a sprinkle of nuts could work, but I haven’t tested those enough to say for sure.
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Tuna Casserole No Milk
- Total Time: 45 minutes
- Yield: 6 1x
Description
A creamy and comforting tuna casserole made without milk, using a dairy-free sauce for a delicious and allergy-friendly meal.
Ingredients
12 ounces egg noodles
2 tablespoons olive oil
1 medium onion, diced
2 cloves garlic, minced
8 ounces mushrooms, sliced
1 can (10.5 ounces) cream of mushroom soup (dairy-free)
1 cup vegetable broth
1 cup canned coconut milk (full fat)
1 teaspoon dried thyme
1/2 teaspoon black pepper
1/2 teaspoon salt
2 cans (5 ounces each) tuna in water, drained
1 cup frozen peas, thawed
1 cup crushed potato chips
Instructions
Preheat the oven to 350°F (175°C).
Cook egg noodles according to package instructions until al dente. Drain and set aside.
In a large skillet, heat olive oil over medium heat. Add diced onion and cook for 3-4 minutes until translucent.
Add minced garlic and sliced mushrooms to the skillet. Cook for 5-6 minutes until mushrooms are softened.
In a large mixing bowl, combine the dairy-free cream of mushroom soup, vegetable broth, coconut milk, dried thyme, black pepper, and salt. Stir well to combine.
Add the cooked onion, garlic, and mushroom mixture to the bowl. Stir in the drained tuna, thawed peas, and cooked egg noodles. Mix until evenly combined.
Transfer the mixture to a 9×13 inch baking dish and spread evenly.
Sprinkle the crushed potato chips evenly over the top of the casserole.
Bake in the preheated oven for 25-30 minutes, until the casserole is bubbly and the topping is golden brown.
Remove from oven and let cool for 5 minutes before serving.
- Prep Time: 15 minutes
- Cook Time: 30 minutes
For this recipe, you don’t need any fancy equipment—just a good skillet and a baking dish. Serving it alongside a crisp green salad or some roasted vegetables lifts the meal without much effort. I’ve also tried adding a handful of shredded cheese on top before baking, but honestly, it’s just as good without it and keeps things dairy-free. Sometimes I toss in some diced bell peppers or swap the peas for corn, depending on what’s in the fridge, and it still turns out pretty tasty.
FAQ
Can I use fresh mushrooms instead of canned soup? The recipe already uses fresh mushrooms sautéed with onion and garlic, combined with a dairy-free cream of mushroom soup to keep things creamy without milk.
What if I don’t have coconut milk? You could try another dairy-free milk alternative, but coconut milk’s fat content really helps create that creamy texture.
Is this recipe freezer-friendly? Leftovers store well in the fridge for a few days, but I’d be cautious about freezing because the texture might change, especially with the potato chip topping.
Try this whenever you want a comforting, creamy meal that’s a little different—and surprisingly easy to make.