Gluten and Dairy Free Chicken and Rice Casserole Recipe: Allergy-Friendly Comfort Food

Comfort food doesn’t have to mean compromise—this allergy-friendly casserole delivers the same warmth and satisfaction without gluten or dairy. A one-dish wonder that’s as nourishing as it is delicious.

Tender chicken, fluffy rice, and a creamy sauce come together in a foolproof bake. Perfect for busy weeknights or when you need a meal that feels like a hug.

Ingredients for Gluten and Dairy Free Chicken and Rice Casserole

A handful of allergy-friendly staples transform into pure comfort in one dish.

The chicken is the foundation, so go for thick-cut breasts—they stay juicy. Whole Foods or Trader Joe’s have great gluten-free broth options, but check labels for hidden dairy. The coconut milk needs to be full-fat (light won’t give you that creamy sauce). I grab mine from Costco—best value for the canned stuff. Fresh veggies work too, but frozen peas are a freezer staple that’s always ready.

No coconut milk? Cashew cream or oat cream work in a pinch. Swap the rice for quinoa if you want extra protein. Out of Dijon? Yellow mustard at half the amount gets you close. The gluten-free flour can be any blend—Bob’s Red Mill 1-to-1 is my go-to. For extra flavor, add a pinch of smoked paprika (worth the cabinet space).

Assemble and bake right away, or cover and refrigerate for up to 24 hours. Leftovers keep 4-5 days in the fridge or freeze for 3 months. Reheats like a dream—sometimes better the next day (don’t skip the resting time).

Step-by-Step Instructions for Gluten and Dairy Free Chicken and Rice Casserole

Here’s the method that turns simple ingredients into a creamy, comforting one-dish wonder.

Step 1: Cook the Rice to Al Dente Perfection

Rinse the 1.5 cups long-grain white rice under cold water until the water runs clear to remove excess starch. In a medium saucepan, bring the 2.5 cups gluten-free chicken broth to a boil over high heat.

Add the drained rice, reduce heat to low, cover and simmer for 15 minutes until the liquid is absorbed and the rice is just tender. The grains should still have a slight bite—they’ll finish cooking in the oven.

Step 2: Sauté Aromatics and Prepare the Chicken

While the rice cooks, heat 1 tablespoon olive oil in a large skillet over medium heat. Add the finely diced yellow onion and 2 pieces celery stalks, cooking for 5 minutes until softened and translucent.

Add the minced 3 cloves garlic cloves and cook for 30 seconds until fragrant. Transfer the vegetables to a bowl. In the same skillet, heat the remaining 1 tablespoon olive oil and cook the bite-sized 1.5 lb boneless skinless chicken breasts for 5-6 minutes until lightly browned and cooked through.

Step 3: Create the Creamy Coconut Sauce

In a small bowl, whisk together the 0.25 cup gluten-free all-purpose flour, 1 can coconut milk, 1 tablespoon Dijon mustard, 1 teaspoon dried thyme, 1 teaspoon sea salt, and 0.5 teaspoon black pepper until smooth.

Pour this mixture into the skillet used for the chicken, scraping up any browned bits. Cook over medium heat for 3-4 minutes, stirring constantly, until the sauce thickens to the consistency of heavy cream. This creates a rich, velvety base that coats every grain of rice.

Step 4: Assemble and Bake the Casserole

In a large bowl, combine the cooked rice, sautéed vegetables, chicken, and creamy sauce. Gently fold in the 1 cup frozen peas until everything is evenly coated. The peas should be thawed but still bright green.

Transfer the mixture to a greased 9×13-inch baking dish and spread it out evenly. Bake at 375°F for 20-25 minutes until the top is lightly golden and the edges are bubbling. Let it rest for 5 minutes before serving to allow the flavors to meld together.

Flavor Customization for This Dish

Herb Infusions

Swap the dried thyme for 1 tsp dried rosemary or 1 tbsp fresh parsley for a brighter, more aromatic profile. I love adding ½ tsp smoked paprika for a subtle, warm depth that pairs beautifully with the coconut base. 🌿

Spice It Up

For heat, stir in ¼ tsp cayenne pepper or ½ tsp red pepper flakes into the sauce. A pinch of ground cumin adds earthy warmth. These small tweaks transform the dish without overpowering the natural flavors.

Extra Veggies

Add 1 cup diced bell peppers or 1 cup chopped spinach when folding in the peas. Sauté 1 cup sliced mushrooms with the onions for an umami boost. The extra texture and nutrients make it even more satisfying.

Protein Swaps

Replace chicken with 1.5 lb turkey breast or 1.5 lb firm tofu (pressed and cubed) for variety. Shrimp works too—add 1 lb peeled shrimp during the last 10 minutes of baking to prevent overcooking. 💪

Creamy Variations

If you’re not a fan of coconut, use 1 can cashew cream or 1 can oat cream instead. Both provide the same luxurious texture while keeping it dairy-free. The flavor will be milder, letting other ingredients shine.

Crunchy Topping

Before baking, sprinkle ½ cup gluten-free breadcrumbs or ½ cup crushed almonds on top for a crispy finish. Mix with 1 tbsp olive oil and a pinch of salt for extra flavor. This adds a delightful contrast to the creamy casserole.

Frequently Asked Questions