There’s something magical about a meal that brings together tender chicken, flavorful teriyaki sauce, and colorful veggies—all in one dish. This Teriyaki Chicken & Stir-Fry Casserole is a weeknight hero, ready in no time and packed with bold, delicious flavors. Whether you’re craving a cozy meal for your family or need a simple dish that can be prepped ahead, this recipe has you covered.
Let’s dive into this easy-to-make, flavor-packed casserole that’s about to become a staple in your home!
Why You’ll Love This Teriyaki Chicken Casserole
- Quick & Easy: With just a few simple steps, you can have dinner in the oven in no time.
- One-Pan Wonder: Everything bakes together, making cleanup a breeze.
- Packed with Flavor: Teriyaki sauce gives the perfect balance of sweet and savory.
- Customizable: Use your favorite veggies or swap out ingredients to suit your taste.
- Meal Prep Friendly: Make it ahead and reheat for a fast, satisfying meal.
Ingredients You’ll Need
Before we get started, here’s what you’ll need to make this amazing teriyaki casserole:
For the Chicken & Casserole:
✔️ 1 pound raw chicken breast, diced
✔️ 2 cups instant rice
✔️ 3 cups frozen mixed vegetables (like carrots, peas, and broccoli)
✔️ 1 cup teriyaki sauce
✔️ 2 tablespoons vegetable oil
✔️ 1 teaspoon garlic powder
✔️ Salt and pepper to taste
For Garnish (Optional):
✔️ Sesame seeds
✔️ Sliced green onions
Step 1: Preheat Your Oven
Before anything else, preheat your oven to 375°F (190°C). This ensures the casserole bakes evenly and that the flavors meld together beautifully.
Step 2: Marinate the Chicken
The secret to juicy, flavorful chicken is marination. In a large bowl, toss your diced chicken with:
✅ ½ cup teriyaki sauce
✅ 1 teaspoon garlic powder
✅ Salt & pepper to taste
Let this sit for about 5 minutes while you prep the rest of your ingredients. This quick marinade gives the chicken a deliciously rich teriyaki flavor.
Step 3: Cook the Chicken
In a large skillet over medium-high heat, heat 2 tablespoons of vegetable oil. Once the oil is hot, add the marinated chicken. Cook for 5-7 minutes until the pieces are mostly cooked through. They don’t need to be fully done since they’ll finish cooking in the oven.
Pro Tip: Don’t overcrowd the skillet! Cooking the chicken in a single layer helps it brown nicely and develop extra flavor.
Step 4: Prepare the Rice
While the chicken is cooking, prepare 2 cups of instant rice according to the package instructions. Usually, this means:
- Boiling water
- Adding the rice
- Letting it sit covered for about 5 minutes
Using instant rice keeps this dish quick and hassle-free—perfect for those busy evenings!
Step 5: Assemble the Casserole
Now, it’s time to bring everything together! In a large casserole dish, combine:
✅ Cooked chicken
✅ Prepared rice
✅ 3 cups of frozen mixed vegetables
✅ Remaining ½ cup of teriyaki sauce
Give everything a good stir to evenly distribute the sauce and ingredients. The combination of chicken, rice, and vibrant veggies makes this casserole both filling and nutritious.
Baking & Serving Your Teriyaki Chicken & Stir-Fry Casserole
Now that we’ve prepped all the ingredients and assembled our casserole, it’s time to let the oven do the rest of the work! This next phase is where all those flavors blend together, creating a comforting, satisfying meal. Let’s get baking!
Step 6: Bake the Casserole
Cover the casserole dish tightly with foil and place it in the preheated 375°F (190°C) oven.
Bake for 20-25 minutes, or until the vegetables are heated through and the flavors have melded beautifully.
Pro Tip: Keeping the dish covered prevents the rice from drying out and allows the steam to cook everything evenly. If you prefer a crispier texture on top, remove the foil in the last 5 minutes of baking.
Step 7: Garnish & Serve
Once the casserole is out of the oven, it’s time for the finishing touches!
Sprinkle toasted sesame seeds and thinly sliced green onions over the top for a pop of flavor and texture. These little extras make a big difference, adding freshness and a restaurant-quality presentation.
Serve the casserole warm, straight from the dish, and enjoy the delicious combination of juicy chicken, tender rice, and crisp veggies coated in rich teriyaki sauce.
Serving Suggestion: This casserole pairs perfectly with a side of egg rolls, a fresh cucumber salad, or even a simple bowl of miso soup for a full meal experience.
Variations & Customization Ideas
One of the best things about this Teriyaki Chicken & Stir-Fry Casserole is how easy it is to customize! Here are a few ways to switch things up:
1. Make it Low-Carb
Swap out the instant rice for cauliflower rice to create a lighter, low-carb version of this dish. Just mix in the frozen cauliflower rice and bake as usual!
2. Use Different Proteins
Not a fan of chicken? Try these tasty swaps:
✔ Shrimp: Toss in raw shrimp instead of chicken (no need to pre-cook).
✔ Beef: Use thinly sliced steak instead of chicken for a teriyaki beef stir-fry casserole.
✔ Tofu: For a vegetarian version, use extra-firm tofu, cut into cubes and marinated in teriyaki sauce.
3. Add Extra Veggies
Want to pack in even more nutrients? Try adding:
🥦 Bell peppers for crunch
🍄 Mushrooms for umami flavor
🌿 Baby spinach stirred in at the end for extra greens
4. Make it Spicy
Love a little heat? Stir in red pepper flakes or drizzle some sriracha over the top before serving!
Meal Prep & Storage Tips
This casserole isn’t just easy to make—it’s also great for meal prep! Here’s how to store leftovers and reheat them for a quick, stress-free meal later.
Storing Leftovers:
✔ Store in an airtight container in the fridge for up to 4 days.
✔ For longer storage, freeze portions in airtight containers for up to 3 months.
Reheating Instructions:
✔ Microwave: Heat individual portions for 1-2 minutes, stirring halfway through.
✔ Oven: Reheat in a covered dish at 350°F (175°C) for 15-20 minutes.
✔ Stovetop: Reheat in a skillet over medium heat, adding a splash of water or extra teriyaki sauce to keep it moist.
Pro Tip: If freezing, let the casserole cool completely before storing. Thaw overnight in the fridge before reheating for the best texture.
FAQs & Final Thoughts on Teriyaki Chicken & Stir-Fry Casserole
Now that you know how to make this delicious Teriyaki Chicken & Stir-Fry Casserole, let’s tackle some of the most frequently asked questions about the recipe. Whether you’re wondering about substitutions, cooking tips, or storage options, I’ve got you covered!
Frequently Asked Questions
1. Can I Use Regular Rice Instead of Instant Rice?
Yes! If you prefer to use regular rice, pre-cook it before assembling the casserole. Instant rice is used in this recipe for convenience, but you can use cooked white rice, brown rice, or even quinoa for a different texture and flavor.
Pro Tip: If using regular rice, make sure it’s slightly undercooked before baking so it doesn’t turn mushy.
2. Can I Make This Recipe Ahead of Time?
Absolutely! This casserole is great for meal prep. You can:
✔ Assemble everything ahead of time, cover, and refrigerate for up to 24 hours before baking.
✔ Bake it fully, then store it in the fridge for quick reheating during the week.
3. How Can I Make This Dish Healthier?
This casserole is already packed with veggies and lean protein, but here are a few ways to make it even healthier:
🥦 Use cauliflower rice instead of instant rice for a low-carb version.
🥢 Opt for low-sodium teriyaki sauce to reduce salt content.
🍗 Swap chicken breast for lean ground turkey or tofu for a lighter option.
4. What Other Vegetables Can I Use?
The beauty of this recipe is that you can customize it with any veggies you love! Some great options include:
✔ Bell peppers (adds crunch and sweetness)
✔ Snap peas (adds a crisp bite)
✔ Baby corn (great for an Asian-inspired twist)
✔ Mushrooms (adds a rich umami flavor)
5. Can I Make This Recipe in a Slow Cooker?
Yes! To make this in a slow cooker:
1️⃣ Add raw chicken, teriyaki sauce, and garlic powder to the slow cooker. Cook on low for 4-5 hours or high for 2-3 hours until the chicken is fully cooked.
2️⃣ Stir in frozen vegetables and cooked rice during the last 30 minutes of cooking.
3️⃣ Serve with garnishes and enjoy!
Note: If using a slow cooker, skip the pre-cooking of the chicken since it will cook in the sauce.
6. Can I Freeze This Casserole?
Yes! Freeze leftovers in an airtight container for up to 3 months. When ready to eat, thaw in the fridge overnight and reheat in the oven at 350°F (175°C) for 15-20 minutes, or in the microwave.
Final Thoughts: Why You Should Try This Recipe Tonight!
This Teriyaki Chicken & Stir-Fry Casserole is a weeknight game-changer—it’s quick, easy, packed with flavor, and endlessly customizable. Whether you’re cooking for your family, meal prepping for the week, or just craving a comforting, homemade meal, this dish delivers every time.
Why We Love This Recipe:
✔ One-pan convenience – minimal dishes to wash!
✔ Perfect balance of sweet, savory, and umami flavors
✔ Customizable with different proteins and veggies
✔ Great for meal prep and freezer-friendly

Teriyaki Chicken & Stir-Fry Casserole
- Author: Sophia
- Total Time: 40 minutes
Description
This easy Teriyaki Chicken & Stir-Fry Casserole is a delicious and quick dinner option packed with juicy chicken, flavorful teriyaki sauce, tender rice, and colorful vegetables. Perfect for busy weeknights!
Ingredients
For the Chicken & Casserole:
- 1 pound raw chicken breast, diced
- 2 cups instant rice
- 3 cups frozen mixed vegetables (like carrots, peas, and broccoli)
- 1 cup teriyaki sauce
- 2 tablespoons vegetable oil
- 1 teaspoon garlic powder
- Salt and pepper to taste
For Garnish (Optional):
- Sesame seeds
- Sliced green onions
Instructions
1️⃣ Preheat the Oven:
Set your oven to 375°F (190°C) to preheat.
2️⃣ Marinate the Chicken:
In a large bowl, toss the diced chicken with ½ cup teriyaki sauce, garlic powder, salt, and pepper.
Let it marinate for 5 minutes to absorb the flavors.
3️⃣ Cook the Chicken:
Heat the vegetable oil in a large skillet over medium-high heat.
Add the marinated chicken and cook for 5-7 minutes, or until it’s mostly cooked through.
4️⃣ Prepare the Rice:
While the chicken is cooking, prepare the instant rice according to package instructions.
Usually, this means boiling water, adding rice, and letting it sit covered for 5 minutes.
5️⃣ Assemble the Casserole:
In a large casserole dish, combine the cooked chicken, prepared rice, frozen vegetables, and the remaining teriyaki sauce.
Stir everything together until well mixed.
6️⃣ Bake the Casserole:
Cover the dish with foil and bake for 20-25 minutes, or until the vegetables are heated through and the flavors have blended.
7️⃣ Garnish & Serve:
Remove from the oven, and optionally sprinkle with sesame seeds and sliced green onions before serving.
Notes
✅ Make it Spicy: Add red pepper flakes or a drizzle of sriracha for some heat!
✅ Use Fresh Vegetables: If using fresh veggies, blanch them in boiling water for 2-3 minutes before adding to the casserole.
✅ Swap the Rice: Try brown rice, quinoa, or cauliflower rice for a different texture.
✅ Extra Sauce: If you love extra saucy casseroles, add an additional ¼ cup of teriyaki sauce before serving.
- Prep Time: 10 minutes
- Cook Time: 30 minutes
Nutrition
- Serving Size: 4