Skinny Tuna Noodle Casserole – Comfort Food Made Healthy

Skinny Tuna Noodle Casserole – Comfort Food Made Healthy
This lightened-up tuna noodle casserole brings all the cozy comfort of the classic dish without the heavy calories. By swapping traditional ingredients for healthier alternatives like Greek yogurt and whole wheat pasta, we’ve created a weeknight dinner that satisfies your cravings while keeping things nutritious. Perfect for those seeking easy seafood dinners or anyone looking to enjoy beloved comfort foods in a healthier way.
What makes this recipe special is its clever use of Greek yogurt instead of heavy cream sauces, which reduces fat while adding protein. The result is a creamy, satisfying casserole that feels indulgent but won’t weigh you down. It’s an ideal choice for meal prep, family dinners, or when you need a comforting meal that aligns with your health goals.

Ingredients
- 8 oz whole wheat egg noodles
- 2 tablespoons olive oil
- 1 medium onion, diced
- 2 cloves garlic, minced
- 8 oz mushrooms, sliced
- 1 cup frozen peas
- 2 (5 oz) cans tuna in water, drained
- 1 cup plain Greek yogurt
- 1 cup chicken or vegetable broth
- 1 tablespoon Dijon mustard
- 1 teaspoon dried dill
- ½ teaspoon paprika
- Salt and black pepper to taste
- ½ cup whole wheat breadcrumbs
- ¼ cup grated Parmesan cheese
Step-by-Step Instructions
Step 1: Cook the Noodles
Preheat your oven to 375°F (190°C). Cook the whole wheat egg noodles according to package directions until al dente, then drain and set aside.
Step 2: Sauté Vegetables
Heat olive oil in a large skillet over medium heat. Add diced onion and cook until softened, about 5 minutes. Add garlic and mushrooms, cooking until mushrooms release their liquid and become tender.
Step 3: Create the Creamy Sauce
In a medium bowl, whisk together Greek yogurt, chicken broth, Dijon mustard, dried dill, paprika, salt, and pepper. This creates a light, protein-rich sauce base that’s perfect for your healthy pasta dishes.
Step 4: Combine Ingredients
In a large mixing bowl, combine the cooked noodles, sautéed vegetable mixture, frozen peas, flaked tuna, and the yogurt sauce. Gently fold everything together until well combined.
Step 5: Assemble and Bake
Transfer the mixture to a 9×13-inch baking dish. In a small bowl, mix breadcrumbs and Parmesan cheese, then sprinkle evenly over the top. Bake for 25-30 minutes until the topping is golden brown and the casserole is bubbly.
Expert Tips
Fresh Herb Boost: Add fresh parsley or chives at the end for extra flavor and color. Fresh herbs elevate this dish from simple to spectacular.
Vegetable Variations: Feel free to add other vegetables like diced carrots, bell peppers, or spinach. This recipe works well with whatever vegetables you have on hand.
Make-Ahead Option: Assemble the casserole up to a day in advance, cover, and refrigerate. Add 5-10 minutes to the baking time if baking straight from the refrigerator.
Freezing Instructions: This casserole freezes beautifully. Wrap tightly and freeze for up to 3 months. Thaw overnight in the refrigerator before baking.
Frequently Asked Questions
Can I use different pasta types?
Yes! Whole wheat pasta works well for extra fiber, but regular egg noodles, penne, or rotini will also work beautifully. This recipe is versatile like our other healthy pasta creations.
How can I make this dish lower in carbs?
For a lower-carb version, substitute zucchini noodles or cauliflower rice for the pasta. The creamy sauce works equally well with these alternatives.
Can I use fresh tuna instead of canned?
Absolutely! Cook and flake about 8 ounces of fresh tuna steak to replace the canned tuna. This creates an even fresher-tasting dish.
Is this recipe freezer-friendly?
Yes, this casserole freezes exceptionally well. Cool completely, wrap tightly in foil, and freeze for up to 3 months. Thaw overnight before reheating.
What makes this “skinny” compared to traditional recipes?
We’ve swapped heavy cream for Greek yogurt, reduced cheese amounts, used whole wheat pasta, and increased vegetables – creating a lighter version that’s still incredibly satisfying.

Skinny Tuna Noodle Casserole – Comfort Food Made Healthy
Ingredients
Method
- Preheat oven to 375°F (190°C). Cook whole wheat egg noodles according to package directions until al dente, then drain and set aside.
- Heat olive oil in a large skillet over medium heat. Add diced onion and cook until softened, about 5 minutes. Add garlic and mushrooms, cooking until mushrooms release their liquid and become tender.
- In a medium bowl, whisk together Greek yogurt, chicken broth, Dijon mustard, dried dill, paprika, salt, and pepper to create the creamy sauce.
- In a large mixing bowl, combine the cooked noodles, sautéed vegetable mixture, frozen peas, flaked tuna, and the yogurt sauce. Gently fold everything together until well combined.
- Transfer the mixture to a 9×13-inch baking dish. Mix breadcrumbs and Parmesan cheese, then sprinkle evenly over the top. Bake for 25-30 minutes until topping is golden brown and casserole is bubbly.






