Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon

Healthy Tuna Noodle Casserole (Pasta Bake) Recipe


5 Stars 4 Stars 3 Stars 2 Stars 1 Star

4.4 from 12 reviews

  • Author: Sara
  • Total Time: 45 minutes
  • Yield: 4 servings
  • Diet: Low Fat

Description

This Healthy Tuna Noodle Casserole is a delicious and nutritious pasta bake combining tender pasta, sautéed vegetables, hearty tuna, and a flavorful tomato sauce, topped with melted cheddar cheese. Perfect for a wholesome weeknight meal, it features fresh ingredients and simple steps for a comforting dish that the whole family will love.


Ingredients

Pasta

  • 3 cups small pasta shape, dry (I used rigatoni)

Vegetables & Aromatics

  • 1/4 cup olive oil (divided)
  • 4 cloves garlic, minced
  • Optional: 1 small onion, diced
  • 1 large bell pepper, cored and chopped
  • 1 cup carrots, chopped (approx. 2-4 carrots, depending on size)
  • 8 large green olives, chopped (approx. 1/2 cup)
  • 2 cups baby spinach

Protein & Sauce

  • 4 cans tuna, drained (approx. 5 oz cans, chunk light or solid white)
  • 2 cups tomato sauce (e.g. marinara)

Seasoning & Topping

  • Salt and pepper, to taste
  • 1 cup cheddar cheese, freshly grated or shredded
  • Optional: chopped basil or green onion, to garnish


Instructions

  1. Preheat the Oven: Preheat your oven to 400°F to ensure it reaches the right temperature while you prepare the casserole ingredients.
  2. Cook Pasta: Bring a pot of salted water to a boil and cook the pasta until al dente according to the package instructions. Drain the pasta thoroughly and set aside.
  3. Sauté Aromatics: Heat 2 tablespoons of olive oil in a large pan over medium heat. Add minced garlic and diced onion (if using), and sauté for about 2 minutes until fragrant and lightly browned.
  4. Cook Vegetables: Add chopped bell peppers, carrots, and olives to the pan. Cook for 5-7 minutes, stirring frequently until the vegetables are slightly softened.
  5. Add Spinach and Tuna: Stir in the baby spinach and cook until wilted, about 2 minutes. Then fold in the drained tuna and tomato sauce. Season generously with salt and pepper. Remove the pan from heat.
  6. Combine Pasta and Mixture: Transfer the sautéed vegetable and tuna mixture into a large baking dish. Add the cooked pasta and the remaining 2 tablespoons of olive oil. Gently stir everything together until well combined.
  7. Prepare for Baking: Spread the pasta mixture evenly in the baking dish, trying to expose more pasta on top to achieve a nice crisp texture. Evenly sprinkle the shredded cheddar cheese over the top.
  8. Bake: Place the baking dish in the preheated oven and bake for 15 minutes, or until the cheese is melted and lightly browned.
  9. Serve: Remove from oven and garnish with optional chopped basil or green onion if desired. Serve hot and enjoy your healthy tuna noodle casserole!

Notes

  • You can use any small pasta shape such as rigatoni, penne, or elbow macaroni.
  • Drain the tuna well to avoid excess moisture in the casserole.
  • Feel free to substitute cheddar cheese with mozzarella or a cheese blend if preferred.
  • For additional flavor, you may add herbs like oregano or thyme into the tomato sauce while cooking.
  • This casserole can be prepared ahead of time and baked just before serving.
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Main Course
  • Method: Baking
  • Cuisine: American