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Low Sodium Tuna Casserole: 7 Secrets for Amazing Flavor!

By Olivia
March 14, 2025

Okay, busy moms and amazing women, let’s talk comfort food. Specifically, tuna casserole. Is there a dish that screams “childhood memories” more than this creamy, cheesy classic? But what if I told you we could ditch the guilt (and the puffiness!) by making a low sodium tuna casserole?

I grew up eating tuna casserole at least once a week. My mom, bless her heart, relied on those cans of cream of mushroom soup – you know, the ones with enough sodium to make a salt lick blush. Don’t get me wrong, it was delicious, but as I got older, I realized I needed a healthier option.

This low sodium tuna casserole is the answer. It’s still got all that heartwarming, nostalgic flavor, but without sending your blood pressure through the roof. Who says we can’t have our casserole and eat it too? (And maybe even fit into our jeans tomorrow?) We will be making the best low sodium tuna casserole you have ever had.

Is it Really Possible to Make it Taste Good?

So, the million-dollar question: Can a low sodium tuna casserole actually taste as good as the classic, sodium-laden version? I’m here to tell you, absolutely, YES!

I’ll admit, I was skeptical at first. My first attempt involved simply leaving out the salt. Big mistake. It tasted like…well, like sadness and disappointment. But after a few (okay, maybe a dozen) experiments, I cracked the code.

The secret? It’s all about layering flavors. We’re talking about using fresh herbs, a touch of lemon juice, and a few other sneaky ingredients that will make your taste buds sing. Trust me, you won’t even miss the salt. We’re about to transform a dish that’s usually a sodium bomb into a healthy, delicious meal that your whole family will love. Are you ready to ditch the guilt and embrace a truly satisfying low sodium tuna casserole?

The Weeknight Savior You’ve Been Waiting For!

Let’s be real, who has time for complicated recipes on a weeknight? We need something quick, easy, and satisfying. This low sodium tuna casserole is all of those things, and more! It’s the kind of meal that comes together in minutes, uses pantry staples, and leaves everyone feeling happy and full.

My kids, who are notoriously picky eaters, actually ask for this casserole. I know, right? Miracles do happen! It’s become our go-to meal for those nights when I’m running on fumes and the fridge is looking a little bare.

low sodium tuna casserole

And speaking of kids… I once tried to “sneak” in some extra veggies by pureeing them into the sauce. Let’s just say it ended with my youngest declaring it “the green monster casserole” and refusing to eat anything but the noodles. Lesson learned: keep the veggies visible, and maybe don’t try to be too sneaky. This is still the best, easy low sodium tuna casserole.

Elevate Your Casserole Game!


Before we dive into the recipe, let’s talk about how this fits into a healthy lifestyle. If you love this low-sodium tuna casserole, you’ll probably also enjoy my Healthy Blackstone Recipes und my Carne con Papas. And for those weekend brunches, my Pistachio Muffins are a must-try!

My grandmother always made tuna casserole for Sunday dinners. It was a tradition, a way to bring the family together. But as we all got older, and health concerns became more prevalent, the classic recipe just didn’t work anymore.

This low-sodium version is a way to honor that tradition, to keep those memories alive, while also taking care of ourselves. It’s a win-win! So, are you ready to make a casserole that’s both delicious and good for you? Let’s get cooking! Make this now.

Pro Tips – Your Guide to Flawless Low Sodium Tuna Casserole!

Okay, let’s prevent any casserole mishaps. Here are my top tips for ensuring your low sodium tuna casserole is a culinary masterpiece:

  • Tuna Choice: Use tuna packed in water, and be sure to drain it very well. This removes a significant amount of sodium. Look for “low sodium” or “no salt added” labels.
  • Noodle Know-How: Cook your noodles al dente (slightly firm to the bite). They’ll continue to cook in the oven, and you don’t want them to turn mushy.
  • Sauce Secrets: Don’t be afraid to experiment with herbs and spices! A little garlic powder, onion powder, black pepper, and dried dill can go a long way. Fresh herbs, like parsley or chives, add a bright, fresh flavor. A squeeze of lemon juice adds acidity and balances the richness.
  • Melting Cheese: Use a low-sodium cheese, or reduce the quantity of the cheese you usually use. Part-skim mozzarella, and reduced sodium swiss are good choices.
  • Consistency is Key
    You do not want your sause to be too watery, or dry.

Ready to get making your new favorite weeknight meal?

low sodium tuna casserole

Variations, Farewell, and a Sneak Peek!

And there you have it – a low sodium tuna casserole that’s both delicious and guilt-free! I hope this recipe becomes a new family favorite in your home, just like it has in mine.

Need to adapt it? Here are some ideas:

  • Dairy-Free: Use a dairy-free milk alternative (like unsweetened almond milk) and a dairy-free cheese substitute.
  • Gluten-Free: Use gluten-free noodles.
  • Extra Veggies: Add some steamed broccoli, peas, or carrots for an extra boost of nutrients.
  • Spice it Up: Add a pinch of red pepper flakes for a little heat.
  • Different Toppings: Breadcrumbs are not the only option. Crushed crackers, or even potato chips can add an unexpected taste.


And as a little teaser… next week, we’re diving into the world of easy desserts with my Butterfinger Balls Recipe! Get ready for some serious deliciousness!

low sodium tuna casserole

Tuna Noodle Casserole

A comforting and creamy tuna noodle casserole with a cheesy breadcrumb topping.
Servings 6 servings
Prep Time 20 minutes
Cook Time 25 minutes
Resting Time 10 minutes
Total Time 45 minutes

Equipment

  • Baking Dish
  • Skillet

Ingredients
  

Casserole Base

  • 8 oz egg noodles see notes
  • 1 tbsp unsalted butter
  • 1 small onion diced
  • 8 oz cremini or baby bella mushrooms sliced
  • 1 tsp dried thyme
  • 3 tbsp whole wheat flour see notes
  • 2 cups low sodium chicken broth
  • 2 cups skim milk
  • 1.5 cups frozen peas thawed
  • 2 (5 oz) cans tuna drained and flaked
  • 3/4 tsp kosher salt
  • 1/2 tsp black pepper
  • 1/3 cup grated Parmesan cheese

Topping

  • 1 cup shredded white cheddar cheese
  • 1/3 cup breadcrumbs
  • 1.5 tbsp unsalted butter cubed

Instructions
 

  • Preheat oven to 375°F. Grease a 2-quart baking dish and set aside.
  • Cook noodles until al dente, then drain and set aside.
  • Melt butter in a large skillet. Add onions, mushrooms, and thyme. Season with salt and pepper. Cook for 6-7 minutes until tender.
  • Stir in flour and cook for 1 minute.
  • Slowly add broth, stirring well. Bring to a boil.
  • Add milk and simmer for 7-8 minutes until slightly thickened.
  • Stir in peas, pasta, tuna, salt, pepper, and Parmesan. Mix well and transfer to baking dish.
  • Top with cheddar, breadcrumbs, and cubed butter.
  • Bake for 20-25 minutes until golden and bubbly. Let rest for 5-10 minutes before serving.

Notes

See notes for substitutions and make-ahead tips.
Course: Casserole
Cuisine: American
Keyword: Comfort Food, Pasta, Tuna

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