There’s a unique joy in preparing a dish that seamlessly combines nostalgia with modern dietary needs, and this Gluten-Free Tuna Noodle Casserole encapsulates just that. The first time I crafted this recipe, it stemmed from a desire to keep the comfort food I loved while accommodating my gluten-sensitive friends. The smell of sautéed mushrooms and bubbling cheese fills the kitchen, instantly transforming it into a cozy haven.
Imagine creamy pasta enveloped in a savory sauce, accented by tender chunks of tuna and vibrant peas, all topped with a golden, crunchy coating. This dish not only satisfies cravings but also brings everyone to the table, making it perfect for family dinners or when guests are around.
Best of all, this casserole is remarkably simple to whip up, ensuring that it won’t become just another burden in your busy weeknight cooking routine. Get ready for a weeknight winner that brings back the warm, hearty flavors of home without any gluten in sight!
Why Love This Tuna Noodle Casserole?
Comforting, Homey Vibes: This Tuna Noodle Casserole delivers the nostalgic taste of home-cooked meals perfect for family gatherings.
Quick and Easy: With just a few straightforward steps, you can prepare this dish in no time perfect for busy weeknights.
Versatile Ingredients: Mix and match your favorite veggies or alternative proteins to make it uniquely yours.
Creamy & Satisfying: The blend of creamy sauce with tender pasta and savory tuna creates a mouthwatering dish the whole family will rave about.
Crowd-Pleasing Appeal: Whether you’re serving kids or adults, this casserole is bound to turn picky eaters into fans!
Tuna Noodle Casserole Ingredients
• Simplify your cooking journey!
For the Casserole
- Gluten-Free Pasta – The foundation of this Tuna Noodle Casserole; use any shape you like!
- Butter – Adds richness to the sauce; swap for olive oil if dairy-free is preferred.
- Cremini Mushrooms – Boosts umami flavor; button mushrooms are a fine substitute.
- Yellow Onion – Creates an aromatic base; shallots work well in its place.
- Garlic Powder – Enhances depth of flavor; fresh garlic can replace it if desired (1 clove = 1/8 tsp powder).
- Cassava Flour – Thickens the sauce beautifully; can use tapioca flour or cornstarch if on hand.
- Chicken or Vegetable Stock – Infuses flavor into the sauce; homemade or low-sodium store-bought is best.
- Cream or Milk – Adds creaminess to the sauce; non-dairy milk is a great vegan alternative.
- Italian Seasoning – Introduces herbaceous notes; use fresh herbs if available for extra flavor.
- Salt & Pepper – Essential for enhancing all the flavors in this dish.
- Cream Cheese – Supplies a creamy texture and tang; consider vegan cream cheese if needed.
- Frozen Peas – Imparts sweetness and color; fresh peas work too, or simply skip them for a simpler dish.
- Canned Tuna – The star protein of this casserole; opt for solid white tuna for the best results.
- Gluten-Free Breadcrumbs – An optional topping for a delightful crunch; crushed gluten-free crackers make a good alternative.
- Grated Parmesan & Cheddar Cheese – Adds flavor and richness; use nutritional yeast for a dairy-free option.
Feel free to explore the delicious possibilities this Tuna Noodle Casserole offers with these warming ingredients!
How to Make Tuna Noodle Casserole
- Preheat Oven: Start by setting your oven to 425°F (220°C) to ensure it’s hot and ready for baking when your casserole is assembled.
- Cook Pasta: Boil your gluten-free pasta according to the package instructions, but remember to undercook it by just one minute to prevent mushiness when baking.
- Sauté Vegetables: In a large pan, melt butter over medium heat. Add the cremini mushrooms and diced yellow onion, sautéing for 6-8 minutes until softened. Stir in the garlic powder and Italian seasoning for an additional minute, allowing the flavors to meld.
- Make Sauce: Sprinkle the cassava flour over the sautéed vegetables, stirring to combine. Gradually pour in the chicken or vegetable stock and cream, mixing continuously until the sauce thickens to your desired consistency.
- Combine Ingredients: Off the heat, mix in the cream cheese and frozen peas, seasoning with salt and pepper to taste. Then, gently fold in the cooked pasta and drained tuna, ensuring everything is evenly coated in the sauce.
- Bake: Transfer the combined mixture to a 9×13-inch baking dish. Top with grated cheddar, parmesan, and optional gluten-free breadcrumbs. Bake for 15-20 minutes until the cheese is bubbly and golden brown.
Optional: Garnish with fresh herbs after baking for a burst of color and flavor.
Exact quantities are listed in the recipe card below.
What to Serve with Tuna Noodle Casserole?
Crafting the perfect dinner around this comforting casserole creates an experience that warms both heart and home.
- Simple Green Salad: A light salad with mixed greens and a tangy vinaigrette balances the casserole’s richness beautifully, adding freshness to every bite.
- Steamed Broccoli: Tender steamed broccoli brings a delightful crunch and vibrant color, making it a nutritious side that pairs effortlessly with creamy dishes.
- Garlic Bread: Crispy garlic bread adds a comforting bread element, perfect for mopping up the creamy sauce and providing a satisfying crunch.
- Coleslaw: The creamy crunch of coleslaw offers a fantastic contrast in texture and flavor to your casserole, creating a delightful balance.
- Roasted Vegetables: Oven-roasted carrots, bell peppers, and zucchini add a smoky flavor and nutrients, perfectly complementing the casserole’s comforting essence.
- Chilled White Wine: A glass of chilled Sauvignon Blanc or a light Pinot Grigio enhances the dish, cutting through creaminess and creating an elegant feel to your meal.
- Fresh Fruit Salad: A bowl of bright, seasonal fruit adds a sweet touch and refreshing palate cleanser after the hearty casserole, making for a lovely finish.
Make Ahead Options
This Gluten-Free Tuna Noodle Casserole is an excellent choice for meal prep enthusiasts! You can assemble the entire casserole, cover it tightly, and refrigerate it up to 24 hours ahead of baking. By doing this, you’ll save precious time on busy weeknights while ensuring that your family still enjoys this comforting dish, just as delicious as if it were freshly made. To maintain the best quality, make sure to cover the casserole with foil or plastic wrap, preventing it from drying out. When you’re ready to bake, simply preheat your oven and cook the casserole straight from the fridge, adding an extra few minutes to the baking time if needed. Enjoy the ease of having a cozy meal ready at a moment’s notice!
Tuna Noodle Casserole Variations
Customize your dish by incorporating these delightful twists for an even heartier meal!
- Veggie-Boost: Add fresh spinach or kale to increase the nutritional value while adding a beautiful pop of color.
- Protein Swap: Try shredded chicken or chickpeas instead of tuna for a creative and satisfying alternative. Each will bring a unique flavor to the dish.
- Spicy Addition: For a kick, incorporate diced jalapeños or a splash of hot sauce, elevating the flavor profile to new heights.
- Creamy Dream: Swap the cream cheese for a generous dollop of sour cream for a tangy twist that pairs beautifully with the flavors.
- Cheesy Goodness: Mix in additional cheeses like feta or pepper jack to diversify the taste and enhance the creaminess.
- Crunch Factor: Top with crushed gluten-free potato chips instead of breadcrumbs for a fun, crunchy texture that kids will love.
- Savory Herbs: Use fresh herbs like dill or parsley for added freshness and flavor, making each bite feel even more special.
- Noodle Variations: Experiment with different gluten-free pasta shapes; try penne or fusilli for a fun twist on traditional noodles. Enjoy the varying textures in your casserole!
Storage Tips for Tuna Noodle Casserole
Fridge: Store your Tuna Noodle Casserole in an airtight container for up to 3 days. To keep it fresh, avoid leaving it uncovered.
Freezer: For longer storage, freeze the casserole in a well-sealed freezer-safe container for up to 2 months. Thaw in the fridge overnight before reheating.
Reheating: When you’re ready to enjoy leftovers, add a splash of broth or milk to retain moisture, and reheat in the oven at 350°F (175°C) until heated through.
Make-Ahead: You can assemble the casserole a day in advance and store it in the fridge. Just pop it in the oven when you’re ready for a delightful meal!
Expert Tips for Tuna Noodle Casserole
- Perfect Pasta: Ensure to slightly undercook the gluten-free pasta since it will continue to cook while baking, preventing mushiness.
- Watch the Oven: Keep an eye on your casserole towards the end of baking to avoid over-browning the cheese topping, which can happen quickly.
- Creamier Leftovers: For a luscious texture when reheating, add a splash of milk or stock to the casserole before warming it up in the microwave or oven.
- Flavor Substitutions: Experiment with different proteins or veggies, like shredded chicken or fresh spinach, for your own unique twist on the classic Tuna Noodle Casserole.
- Breadcrumb Crunch: If using gluten-free breadcrumbs, add them right before baking to keep them crisp and avoid sogginess.
Tuna Noodle Casserole Recipe FAQs
How do I choose the right gluten-free pasta for my casserole?
Absolutely! Look for gluten-free pasta that fits your preference. I recommend using a shape like rotini or penne; they hold onto the sauce beautifully. Check the packaging for certified gluten-free labels to avoid cross-contamination.
How should I store any leftovers?
Store your Tuna Noodle Casserole in an airtight container in the refrigerator for up to 3 days. Be sure to let it cool completely before sealing the container to prevent moisture buildup, which can lead to sogginess.
Can I freeze Tuna Noodle Casserole?
Yes, you can freeze the casserole for up to 2 months! To do this, allow the casserole to cool completely, then transfer it to a freezer-safe container. Make sure to cover it tightly. When you’re ready to enjoy it, thaw it overnight in the fridge, then reheat in the oven at 350°F (175°C) until hot throughout.
What if my casserole is too dry after reheating?
No worries! If your Tuna Noodle Casserole turns out a bit dry, simply add a splash of broth or milk while reheating to bring back that creamy texture. Stir it gently as it warms to ensure even moisture distribution.
Does this recipe accommodate specific dietary restrictions?
Very! This Tuna Noodle Casserole can be adjusted for various dietary needs. To make it dairy-free, use vegan cream cheese and non-dairy milk. Always double-check ingredient labels for potential allergens, especially with canned products and store-bought stock.

Gluten-Free Tuna Noodle Casserole for Cozy Family Dinners
Ingredients
Equipment
Method
- Preheat your oven to 425°F (220°C).
- Boil gluten-free pasta according to package instructions, undercooking by one minute.
- Melt butter in a pan over medium heat. Add mushrooms and onion, sauté for 6-8 minutes. Stir in garlic powder and Italian seasoning for another minute.
- Sprinkle cassava flour over vegetables, stir to combine. Gradually add stock and cream, mixing until sauce thickens.
- Remove from heat. Mix in cream cheese and peas. Season with salt and pepper. Fold in pasta and drained tuna.
- Transfer to a 9x13-inch baking dish, top with cheddar, parmesan, and breadcrumbs. Bake for 15-20 minutes until bubbly and golden brown.







