This recipe is a lighter twist on the classic tuna casserole, keeping it comforting and creamy while reducing excess fat and calories. It serves about 4–6 people.
Ingredients:
For the Casserole:
- 8 ounces (about 2 cups) whole wheat or high-fiber elbow macaroni
- 2 cans (5 ounces each) tuna in water, drained
- 1 cup frozen peas
- 1 cup chopped carrots
- 1 small onion, finely diced
- 2 cloves garlic, minced
- 1 cup mushrooms, sliced
- 1/2 cup celery, finely diced
- 1/2 teaspoon salt (adjust to taste)
- 1/4 teaspoon black pepper
- 1/4 teaspoon dried thyme
- 1/4 teaspoon paprika
For the Light Cream Sauce:
- 2 tablespoons olive oil
- 2 tablespoons all-purpose flour (or whole wheat flour for extra fiber)
- 2 cups low-fat milk (1% or skim)
- 1/2 cup low-sodium chicken or vegetable broth
- 1/4 cup plain Greek yogurt (adds creaminess without heavy cream)
- 1 teaspoon Dijon mustard
- 1/4 teaspoon nutmeg (optional, enhances flavor)
For the Topping:
- 1/2 cup whole grain breadcrumbs
- 1/4 cup grated Parmesan cheese (optional for a lighter version)
- 1 teaspoon olive oil
- Fresh parsley, chopped, for garnish
Instructions:
1. Preheat Oven and Prepare Pasta
- Preheat your oven to 375°F (190°C).
- Bring a large pot of salted water to a boil. Cook the elbow macaroni according to package instructions until al dente (slightly firm).
- Drain the pasta and set aside. Toss lightly with a teaspoon of olive oil to prevent sticking.
2. Prepare the Light Cream Sauce
- In a medium saucepan, heat 2 tablespoons olive oil over medium heat.
- Add the minced garlic and diced onions. Sauté until onions become translucent, about 3–4 minutes.
- Add the flour and whisk constantly for 1–2 minutes to create a light roux. The flour will help thicken the sauce.
- Gradually add the milk and broth while whisking to avoid lumps.
- Bring the mixture to a gentle simmer. Continue whisking until the sauce thickens slightly, about 5–7 minutes.
- Remove from heat, then stir in Greek yogurt, Dijon mustard, salt, pepper, thyme, paprika, and nutmeg. Taste and adjust seasonings if necessary.
3. Combine Casserole Ingredients
- In a large mixing bowl, combine the cooked pasta, drained tuna, peas, carrots, mushrooms, and celery.
- Pour the cream sauce over the mixture and gently fold until everything is evenly coated.
- Transfer the mixture to a lightly greased 9×13-inch baking dish.
4. Prepare Topping
- In a small bowl, mix breadcrumbs, Parmesan cheese, and olive oil until the crumbs are lightly coated.
- Sprinkle the breadcrumb mixture evenly over the casserole. This adds a satisfying crunch while keeping the topping light.
5. Bake the Casserole
- Place the casserole in the preheated oven and bake uncovered for 25–30 minutes, or until the top is golden brown and the casserole is bubbling at the edges.
- If desired, broil for an additional 1–2 minutes at the end to achieve a crispier topping.
6. Serve
- Remove from the oven and let the casserole sit for 5 minutes to settle.
- Garnish with freshly chopped parsley before serving for a pop of color and freshness.
- Serve warm with a simple green salad or steamed vegetables for a complete, light meal.
Tips for the De-Lightful Version
- Use whole wheat pasta or chickpea pasta for extra fiber and protein.
- Greek yogurt adds creaminess without excess fat—avoid sour cream or heavy cream for a lighter version.
- Frozen or fresh vegetables can be substituted depending on what you have on hand.
- Leftovers can be stored in an airtight container in the fridge for up to 3 days. Reheat in the oven or microwave until heated through.

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