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Easy Teriyaki Chicken Casserole

Teriyaki Chicken Casserole

Tender chicken, fluffy rice, and crisp vegetables coated in homemade teriyaki sauce. A quick and delicious one-pan meal ready in 25 minutes.
Prep Time 10 minutes
Cook Time 15 minutes
Total Time 25 minutes
Course Main Course, Dinner
Cuisine Asian, Japanese-Inspired
Servings 4
Calories 385 kcal

Ingredients
  

  • For the Teriyaki Sauce:
  • 3/4 cup low-sodium soy sauce
  • 1/2 cup water
  • 1/4 cup brown sugar packed
  • 1/2 teaspoon ground ginger
  • 1/2 teaspoon minced garlic about 1 clove fresh
  • 2 tablespoons cornstarch
  • 2 tablespoons water for slurry
  • For the Casserole:
  • 1 pound boneless skinless chicken breasts cut into bite-sized pieces
  • 12 ounces refrigerated stir-fry vegetables pre-steamed
  • 3 cups cooked rice brown or white

Instructions
 

  • Make the Teriyaki Sauce:
  • In a medium saucepan, combine soy sauce, 1/2 cup water, brown sugar, ground ginger, and minced garlic. Stir until sugar begins to dissolve.
  • Place over medium heat and bring to a gentle simmer until sugar dissolves completely.
  • In a small bowl, mix cornstarch with 2 tablespoons cold water until smooth with no lumps.
  • Pour cornstarch slurry into simmering sauce while stirring constantly. Cook for 2 minutes until thickened. Remove from heat and set aside.
  • Prepare the Chicken:
  • Cut chicken breasts into bite-sized pieces, roughly 1-inch cubes.
  • Heat a large skillet or wok over medium-high heat. Add chicken in a single layer.
  • Cook for 5-7 minutes, stirring occasionally, until cooked through and lightly golden (internal temperature 165°F).
  • Assemble the Casserole:
  • Reduce heat to medium-low. Add steamed stir-fry vegetables to the skillet with chicken. Toss together for 2 minutes.
  • Pour prepared teriyaki sauce over chicken and vegetables. Stir gently to coat everything evenly.
  • Add cooked rice and fold in carefully until evenly distributed.
  • Continue cooking for 2-3 minutes, stirring occasionally, until everything is heated through.
  • Serve hot, garnished with sesame seeds and sliced green onions if desired.

Notes

Pro Tips:
Use low-sodium soy sauce to control saltiness. Regular soy sauce can make the dish too salty.
Day-old rice works best as it's slightly drier and won't make the casserole mushy.
Don't skip the cornstarch slurry—it creates the signature thick, glossy teriyaki sauce.
Steam vegetables until crisp-tender, not mushy, to retain texture and color.
Variations:
Add red pepper flakes or sriracha for a spicy kick.
Substitute with shrimp, tofu, or chicken thighs for different proteins.
Use cauliflower rice for a low-carb version.
Try bell peppers, snap peas, mushrooms, or baby corn for vegetable variations.
Storage:
Refrigerate in airtight container for 3-4 days.
Freeze for up to 3 months. Thaw overnight in refrigerator before reheating.
Reheat in microwave for 1-2 minutes or in skillet with a splash of water.
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Keyword Teriyaki Chicken Casserole
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