If you’re craving something cozy yet wholesome, the grilled chicken and broccoli rice casserole is a go-to dish that never disappoints. It’s the kind of meal that feels like a warm hug, creamy, cheesy, and full of satisfying textures, but with just enough fresh ingredients to keep it from feeling heavy.
What makes this casserole stand out is the grilled chicken. Instead of using plain boiled or baked chicken, grilling adds a smoky depth that brings more flavor to every bite. Season the chicken with simple spices like garlic, paprika, and a touch of thyme, then slice it into strips or chunks once it’s cooked and juicy.
The base of the casserole is rice, which soaks up all the creamy goodness from the sauce. You can use white or brown rice, or even a wild rice blend if you want a nutty flavor. Mix it with steamed or lightly sautéed broccoli florets for a pop of green and a mild crunch. The broccoli balances out the richness and adds some much-needed veggies to the dish.
For the sauce, go classic with a mixture of cream (or milk), shredded cheese, and a bit of chicken broth. Cheddar is the usual choice, but Monterey Jack or a sharp blend can elevate the flavor. Add in some sautéed onions or garlic for extra depth. Everything gets mixed together in a baking dish, topped with more cheese, and baked until bubbly and golden on top.
This dish is perfect for busy weeknights or make-ahead meals. You can prepare it the night before, refrigerate it, and just pop it in the oven when you’re ready to eat. Leftovers also reheat beautifully and make a comforting lunch the next day.
Grilled chicken and broccoli rice casserole is the kind of meal that brings people back to the table. It’s easy, familiar, and flexible enough to tweak with different cheeses, veggies, or grains depending on what you have on hand.
Ingredients
- 2 cups chicken diced, cooked
- 2 cups cooked rice
- 2 cups broccoli florets
- 1/2 cup shredded cheddar cheese
- 1/4 cup parmesan cheese grated
- 1/4 cup breadcrumbs
- 1/2 cup milk
- 1/4 cup sour cream
- 2 tbsp butter melted
- 1 tsp garlic powder
- 1/2 tsp onion powder
- Salt and pepper to taste
Instructions
- Preheat the oven to 375°F (190°C).
- In a large mixing bowl, combine the cooked chicken, cooked rice, and broccoli florets.
- In a separate bowl, whisk together the milk, sour cream, melted butter, garlic powder, onion powder, salt, and pepper.
- Pour the milk mixture over the chicken, rice, and broccoli mixture and stir until well combined.
- Transfer the mixture to a greased casserole dish and spread it out evenly.
- In a small bowl, combine the shredded cheddar cheese, grated Parmesan cheese, and breadcrumbs. Sprinkle the cheese and breadcrumb mixture on top of the casserole.
- Bake in the preheated oven for 35-40 minutes or until the casserole is heated through and the cheese is melted and golden brown.
- Remove from the oven and let it cool for a few minutes before serving.
- Serve hot and enjoy!
Nutrition
Broccoli in a casserole with rice? Kinda weird to me, tbh. I know it probably tastes fine, but the texture was off for my family and we weren’t fans.
I accidentally used salted butter and didn’t watch my salt/pepper, so it was slightly too salty. Still ate it all… just next time I’ll adjust.
Broccoli rice casserole is great and all, but 375°F for 35–40 mins seems short for thick portions. Mine wasn’t fully heated in the center until I gave it extra time.
Can I use frozen broccoli instead? Will it be the same?
Yes, you can use frozen broccoli! Just make sure to thaw and drain it first. It should turn out great!
This is the best casserole I’ve made! Easy and yum. 😊
Gr8 recipe, easy to make. I didn’t have sour cream so I used yogurt. Worked fine.
I dunno, it turned out kind of bland. Maybe needs more seasoning?
Pretty good, but I think 40 minutes was a bit long for my oven. I pulled it at 33 and it was perfect—golden on top, not dry.
Loved this! Perfect for left overs.
I like the simplicity, but I added a little extra garlic and a pinch of paprika because why not. Worked great and didn’t taste bland at all.
375°F is right. I made it once and it smelled amazing. Only issue: mine got too crispy on top, so I’d cover loosely with foil if needed.
Made this tonight and it turned out super comforting. The breadcrumb topping is the best part—crispy and cheesy without being too heavy.
Just ok. Also, I used rice that wasn’t cooked and it turned out mushy. My bad! But still not the best.
Wasn’t great 😕. I think the garlic powder overpowered it a bit. I guess we all have dif tastes.
Casserole? Is that like lasagna? I’m confused but I tried and it’s not bad!
Yeah, it’s kinda like lasagna but with rice and chicken! Glad you enjoyed it!
Not bad but kinda bland. I followed the seasoning exactly and it needed more salt and maybe black pepper—like, a lot more.
Totally get that. The “salt and pepper to taste” is super vague—2–3 extra pinches of salt and a few grinds of black pepper makes a big difference. I also sometimes add a little more garlic powder.
I don’t know… it seems kinda bland. I added some hot sauce to spice it up.
This was an awesome recipe! My kids loved it.
I added some hot sauce and it was sooo good. Definitely a keeper!
Pretty good, but the breadcrumb topping mostly disappeared into the cheese for me. Maybe my oven runs hot or I should add a little more breadcrumbs.
Waste of time. Didn’t taste like anything! Guess we all have different tastes.
I’m sorry you didn’t like it! Maybe try adding more spices next time? It helped me a lot!
Chicken and rice is like, a classic but sometimes too basic, y’know? Meh.
5 stars! Loved the cheese on top, it made it mouthwatering! 😋
The instructions are clear, which I appreciate. 35-40 minutes is perfect—my oven runs hot though so I’d check around 30.
Totally agree—those bake times are so handy. I also tend to pull it a bit early when my top browns fast.
Nice! Clear steps make casseroles way less stressful. I’ll probably do 30-32 min like you said and just look for bubbly cheese.
This casserole was a hit at dinner! The kids even loved it! 😊
So glad to hear the kids loved it! This is definitely going on my dinner list! 🥳
Why is there breadcrumbs on top? I feel like it turns into more of a stuffing situation. Still, the flavor was decent.
eh. too many steps for me lol. also i only had 1 cup rice not 2 so i eyeballed it and the texture was off. wouldn’t do it exactly again.
Pretty easy to make and my kids ate it all. Will definitely make again!
That’s awesome to hear! It’s always a win when the kids love it. Thanks for sharing your success! 😊
Instead of chicken, I used tofu. Still good!
I love that you used tofu! Even better for the environment. Can’t wait to try it your way!
Tofu? Really? I don’t know how that would taste. Isn’t chicken better for flavor?
375°F seems low-ish—mine took closer to 50 minutes to be hot all the way through. But once it got there, it tasted great.
Totally agree—375°F is kinda gentle for something that’s basically a casserole with layers. Mine was more like 45-50 min too before it felt properly hot in the middle. But yeah, the flavor after it’s done is worth it.
Hmm, I baked mine exactly 35 minutes and it was fine? Maybe depends on how thick you spread it and whether your rice/chicken were super cold from the fridge. I did keep it in a slightly deeper dish though, so next time I’ll check earlier/late.
I burned the breadcrumb top a little (oops). Still tasted good, though. Lower oven rack and keep an eye on it near the end.
I didn’t have broccoli, so I used green beans? It was still good but not the same I think.
Heard this is good, but I think it’s too basic. Where’s the spices? Only garlic powder? Come on people!
Not gonna lie, I was skeptical about rice + casserole texture, but it came out creamy in my head. Might try it with brown rice too.
I swapped the cheddar for mozzarella and it was so gooey!
OMG I don’t even like broccoli, but this was actually really good! 10/10!
Just made this, but I used quinoa instead of rice. Still worked out great, I think! Not sure if that’s allowed tho.
Made this tonight and it turned out so comforting. The topping is legit—golden and slightly crunchy. I used leftover rotisserie chicken and it still worked perfectly.
That sounds exactly like the kind of casserole I crave—warm, cheesy, and actually crunchy on top. 🙌 Using leftover rotisserie chicken is genius; I’m stealing that next time.
Super easy, my kids helped and we had a blast! Thanks for the simple recipe!
I think I mistook onion powder for garlic powder. Oops! Still, it tasted fine, a bit funky tho!