Skinny Tuna Noodle Casserole: Lightened Up Comfort Food Classic

Skinny Tuna Noodle Casserole: Lightened Up Comfort Food Classic
Rediscover the ultimate comfort food made healthy! This skinny tuna noodle casserole transforms the traditional heavy dish into a nutritious, protein-packed meal that doesn’t sacrifice flavor. Using Greek yogurt instead of heavy cream and smart ingredient swaps, this recipe delivers all the creamy satisfaction while keeping calories in check.
Perfect for busy weeknights or meal prepping, this comforting main dish comes together in just 30 minutes. Whether you’re following a clean eating lifestyle, counting calories, or simply want a healthier version of your favorite childhood meal, this tuna casserole delivers maximum flavor with minimal guilt.

Ingredients for Healthy Tuna Casserole
- 8 oz egg noodles or whole wheat pasta
- 2 cans (5 oz each) chunk light tuna in water, drained
- 1 cup Greek yogurt (plain, non-fat)
- 1 cup low-fat cottage cheese
- 1 small onion, finely diced
- 2 cloves garlic, minced
- 1 cup frozen peas, thawed
- 1 cup sliced mushrooms
- ½ cup grated Parmesan cheese
- 1 tablespoon olive oil
- 1 teaspoon Dijon mustard
- ½ teaspoon paprika
- Salt and black pepper to taste
- ¼ cup whole wheat breadcrumbs (for topping)
Step-by-Step Instructions
Step 1: Cook the Pasta
Bring a large pot of salted water to boil. Cook egg noodles according to package directions until al dente. Drain well and set aside.
Step 2: Sauté Vegetables
Heat olive oil in a large skillet over medium heat. Add diced onion and sauté until translucent, about 3-4 minutes. Add garlic and mushrooms, cooking until mushrooms release their liquid and become tender.
Step 3: Prepare Cream Sauce
In a medium bowl, combine Greek yogurt, cottage cheese, Dijon mustard, paprika, salt, and pepper. Mix until smooth and well combined.
Step 4: Combine Ingredients
In a large mixing bowl, combine cooked noodles, sautéed vegetables, drained tuna, peas, and the yogurt mixture. Gently fold everything together until evenly distributed.
Step 5: Assemble and Bake
Transfer the mixture to a greased 9×13 baking dish. Sprinkle with Parmesan cheese and breadcrumbs. Bake at 375°F (190°C) for 20-25 minutes, or until bubbly and golden brown on top.
Expert Tips for Perfect Results
- Choose Quality Tuna: Use chunk light tuna packed in water for the leanest protein option.
- Creamy Consistency: For extra creaminess, blend the cottage cheese before mixing with other ingredients.
- Customize Vegetables: Add diced carrots, celery, or corn for additional nutrients and texture.
- Make Ahead Friendly: Assemble the casserole up to a day in advance and refrigerate until ready to bake.
- Freezing Instructions: This casserole freezes beautifully for up to 3 months.
If you’re looking for more easy weeknight dinner recipes, this versatile casserole pairs perfectly with a simple green salad or steamed vegetables.
Frequently Asked Questions
Can I use different pasta shapes?
Absolutely! Whole wheat elbow macaroni, rotini, or penne work well. Just adjust cooking time according to package directions.
How can I make this dish dairy-free?
Substitute Greek yogurt with dairy-free yogurt and use nutritional yeast instead of Parmesan cheese.
Is this recipe suitable for meal prepping?
Yes, this tuna casserole reheats beautifully. Store portions in airtight containers for up to 4 days in the refrigerator.
What’s the calorie count per serving?
Each serving contains approximately 280-320 calories, depending on specific ingredients used.
Can I add cheese to make it creamier?
Absolutely! For an extra indulgent touch, mix in ½ cup of shredded mozzarella or cheddar cheese with the yogurt mixture.
This clean eating recipe proves that comfort food doesn’t have to be heavy. For more healthy dinner inspiration, try our creamy garlic parmesan chicken pasta or explore other lightened up classics on our site.

Skinny Tuna Noodle Casserole: Lightened Up Comfort Food Classic
Ingredients
Method
- Bring a large pot of salted water to boil. Cook egg noodles according to package directions until al dente. Drain well and set aside.
- Heat olive oil in a large skillet over medium heat. Add diced onion and sauté until translucent, about 3-4 minutes. Add garlic and mushrooms, cooking until mushrooms release their liquid and become tender.
- In a medium bowl, combine Greek yogurt, cottage cheese, Dijon mustard, paprika, salt, and pepper. Mix until smooth and well combined.
- In a large mixing bowl, combine cooked noodles, sautéed vegetables, drained tuna, peas, and the yogurt mixture. Gently fold everything together until evenly distributed.
- Transfer the mixture to a greased 9×13 baking dish. Sprinkle with Parmesan cheese and breadcrumbs. Bake at 375°F (190°C) for 20-25 minutes, or until bubbly and golden brown on top.
