Gluten Free Tuna Noodle Casserole

Total time1 hr

Prep time20 min

Cook time40 min

5.0

(23)

Tuna noodle casserole is the kind of comfort food that feels like a hug from the inside, and this version delivers every bit of that cozy, creamy satisfaction without a trace of gluten. The sauce skips the usual flour-based roux entirely, using cornstarch whisked into chicken broth instead — it thickens beautifully and coats every noodle just as well as any traditional version. Gluten free pasta can be tricky in baked dishes since it tends to keep softening in the oven, but pulling it just shy of al dente before baking keeps the texture exactly right. Frozen peas and flaked tuna fold right into that silky, thyme-scented sauce alongside sautéed onion, celery, and garlic for a filling that tastes genuinely homemade. The buttery gluten free breadcrumb topping bakes up golden and crisp, giving you that satisfying crunch in every forkful. It serves six, so it's a solid choice for a weeknight family dinner or a dish to bring to someone who needs a little extra care. Finish it with a scatter of fresh parsley and you've got a casserole that looks as good as it tastes.

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Ingredients

6 servings

For the casserole

12 oz gluten free egg noodles or gluten free wide pasta
2 cans (5 oz each) tuna in water, drained
1 ½ cups frozen peas

For the sauce

3 tbsp unsalted butter
1 medium yellow onion, finely diced
3 stalks celery, finely diced
3 cloves garlic, minced
3 tbsp cornstarch
2 cups chicken broth
1 cup whole milk
½ tsp dried thyme
½ tsp salt
¼ tsp black pepper

For the topping

1 cup gluten free breadcrumbs
2 tbsp unsalted butter, melted

For serving

2 tbsp fresh parsley, chopped (optional)

Instructions

1
Preheat the oven to 375°F (190°C). Grease a 9x13-inch baking dish and set aside.
2
Bring a large pot of salted water to a boil. Cook the gluten free pasta according to package directions until just al dente — tender but with a slight resistance at the center. Drain in a colander and set aside. (Gluten free pasta continues to soften in the oven, so pull it 1–2 minutes before fully done.)

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