Give your favorite takeout order an upgrade with this healthy Gluten-Free Teriyaki Chicken Casserole recipe! Chicken breast, veggies, and rice combine and are tossed with a sweet and savory homemade teriyaki sauce!
What Is Teriyaki Chicken Casserole?
Teriyaki chicken casserole is exactly what it sounds like! It’s simply a casserole dish made with all the elements of classic teriyaki chicken including chicken, veggies, rice, and veggies. However, instead of being cooked separately, they’re all combined in a single, easy-to-make dinner!
- Requires easy prep.
- Has a total time of just over an hour.
- Is gluten-free, dairy-free, and nut-free.
- Makes enough to feed a family and is perfect for meal prep!
Gluten-Free Ingredients You’ll Need
- Stir-Fry Sauce – We use our homemade teriyaki sauce made with tapioca starch, gluten free soy sauce (or coconut aminos), coconut palm sugar or honey, rice wine vinegar or apple cider vinegar, grated or ground ginger, minced garlic, and red pepper flakes. However, any gluten-free premade variety will do.
- Chicken – We recommend using boneless skinless chicken breasts for this teriyaki chicken casserole, but thighs taste great, too.
- Veggies – Use any fresh vegetables you like such as broccoli florets, mushrooms, carrots, and snow peas. For easy prep, you can also just use a pre-made stir-fry blend!
- Rice – Use cooked white or brown rice. Or, opt for quinoa or cauliflower rice instead.
- Garnish – Top your casserole with sesame seeds and green onions, if desired for a bit of extra flavor and crunch!
The great thing about this easy teriyaki chicken casserole recipe is that it’s practically failproof! Feel free to mix and match different ingredients to make it your own. For instance, some of our favorite variations include:
- Adding more veggies such as bok choy, baby corn, and water chestnuts.
- Swapping the rice with gluten-free noodles instead.
- Stirring in scrambled eggs.
- Using a different protein such as stir fry beef strips, tofu, or shrimp.
How to Make Homemade Teriyaki Chicken Casserole
This casserole comes together in less time than it takes to order takeout and tastes better, too!
- Prepare. Before you begin, preheat your oven, and grease a casserole dish.
- Prepare the Stir Fry Sauce. Create a slurry by whisking water and tapioca starch in a small bowl. Whisk tamari, water, coconut sugar, rice wine, vinegar, ginger, garlic, and red pepper flakes (if using) in a saucepan, and bring the mixture to a light boil, stirring constantly.
- Thicken the Sauce. Reduce the heat to medium-low, and add the cornstarch slurry. Gently simmer the sauce until it begins to thicken, and remove it from the heat.
- Bake. Arrange the chicken breasts in a single layer in the prepared baking dish. Around the veggies around the chicken, and pour some of the sauce on top. Place the dish in the oven until the chicken reaches an internal temperature of 165 degrees Fahrenheit.
- Add the Remaining Ingredients. Dice or shred the chicken, and add the rice (or quinoa or cauliflower rice) to the dish. Drizzle the remaining sauce on top, and gently toss to combine.
- Warm. Return the dish to the oven, and allow it to bake just until all the ingredients are heated through.
- Serve. Allow the casserole to rest for at least five minutes. Then, sprinkle with green onions and sesame seeds, and drizzle any remaining teriyaki sauce on top. Enjoy warm!
Make Ahead Storage Options
This recipe is a great option to prepare in advance and reheat throughout the week!
- To Make Ahead: Assemble the ingredients up to 24 hours in advance, combining the chicken, veggies, and sauce in a casserole dish, and keeping them covered in the fridge. Then, bake as normal, adding a few minutes as needed until the chicken is fully cooked.
Pro-Tip: Prepare the teriyaki sauce and rice ahead of time as well, and keep them stored in separate airtight containers in the fridge!
- To Store: Transfer leftovers to an airtight container, and store them in the fridge for up to 4 days.
- To Freeze: Place the casserole in a freezer-safe container. Or, cover it tightly with foil, and keep it frozen for up to 2 months.
- To Reheat: Allow frozen leftovers to thaw in the fridge overnight. Then, warm them in the microwave. Or, place the entire dish back in the oven.
Common Questions About This Gluten-Free Teriyaki Chicken Casserole Recipe
Both! We add teriyaki sauce to the dish before and after cooking for a tangy flavor that is infused throughout the entire casserole.
We may be biased, but we prefer to make teriyaki sauce! Not only is our homemade teriyaki sauce free from additives and preservatives, but it can also easily be adjusted to suit all your flavor preferences.
Teriyaki sauce is a type of glaze that is used to quickly add flavor to dishes while they cook or after. On the other hand, teriyaki marinade has a thicker, stickier consistency and is used to coat ingredients over a longer period of time before cooking.
Yes! To do so, steam the veggies according to the package instructions, and pat them dry with a clean paper towel to remove excess water. Then, add the cooked vegetables to the pan with the rice, and coat them with the stir-fry sauce.
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