One-Pan Chicken Breast and Rice Casserole

Tender, golden chicken breasts bake right on top of a creamy, garlicky rice that soaks up all the juices. One pan, no separate pot of rice, and almost no cleanup.

It’s the dinner that fills the kitchen with a warm, savory smell and leaves everyone quiet for a few minutes while they dig in.

Why This Casserole Works

I keep coming back to this one because the rice absorbs all the chicken drippings and broth as it cooks, turning soft and deeply savory. No extra dishes, no stirring halfway through. Just one pan and about 15 minutes of active time.

The sauce feels creamy without being heavy, and the chicken stays moist because it finishes cooking nestled into the rice. It reads like a Sunday meal, but it’s simple enough for a Tuesday night.

Ingredients

• 4 boneless, skinless chicken breasts (about 1.5 lb total): trim any large pieces of fat so they cook evenly.
• 2 tbsp olive oil, divided: use one tablespoon for the chicken, one for the aromatics.
• 1 medium yellow onion, finely diced: gives the rice plenty of savory depth.
• 3 cloves garlic, minced: fresh garlic makes a big difference here.
• 1 cup long-grain white rice, rinsed: rinsing washes off extra starch and keeps the rice fluffy, not gluey.
• 2 cups low-sodium chicken broth: using low-sodium lets you control the salt.
• 1/2 cup heavy cream: adds body and richness without needing a roux.
• 1 tbsp Dijon mustard: just enough to brighten the whole dish, it won’t taste mustardy.
• 1/2 cup freshly grated Parmesan cheese: grate it yourself; pre-shredded doesn’t melt as smoothly.
• 1 tsp dried thyme: or use 1 tablespoon fresh thyme if you have it.
• 1/2 tsp salt, plus more for the chicken
• 1/4 tsp black pepper
• Chopped fresh parsley, for serving (optional)

Variations / Substitutions

• Use chicken thighs: boneless thighs brown beautifully and stay juicy; bone-in thighs need an extra 10 to 15 minutes of bake time.
• Swap the rice: jasmine rice works just as well; avoid instant rice or short-grain rice, which turn too sticky.
• Dairy-free option: full-fat coconut milk replaces the cream, and you can skip the Parmesan or use a dairy-free alternative.
• Add vegetables: stir a cup of frozen peas or chopped broccoli florets into the rice during the last 10 minutes of baking.
• Herb switch: rosemary or oregano can stand in for thyme; use about half the amount of dried oregano.

For a stovetop version that’s ready even faster, try my Lemony Chicken and Rice Skillet.

How to Make Chicken Breast and Rice Casserole

Step 1: Brown the Chicken

Preheat your oven to 400°F (200°C). Pat the chicken breasts dry with paper towels and season both sides with salt and pepper. In a large oven-safe skillet or Dutch oven, heat 1 tablespoon of the olive oil over medium-high heat. Add the chicken and cook until deeply golden on the first side, about 3 minutes. Flip and brown the second side for another 3 minutes. The chicken doesn’t need to be cooked through; it’ll finish in the oven. Transfer the chicken to a plate and set it aside.

Step 2: Sauté the Onion and Toast the Rice

Reduce the heat to medium and add the remaining 1 tablespoon olive oil to the same pan. Toss in the diced onion with a pinch of salt and cook, stirring occasionally, until softened, about 5 minutes. Stir in the minced garlic and dried thyme and cook until fragrant, 30 seconds. Add the rinsed rice and stir constantly for 1 to 2 minutes, until the edges of the grains turn slightly translucent. This toasting step deepens the rice’s flavor and keeps it from getting gluey. The rice will smell nutty and look a bit glossy.

Step 3: Build the Sauce

Pour in the 2 cups chicken broth, the 1/2 cup heavy cream, and the 1 tablespoon Dijon mustard. Stir well, scraping the bottom of the pan to release any browned bits. Bring the mixture to a gentle simmer, then stir in the 1/2 cup grated Parmesan. Taste the liquid and add the 1/2 teaspoon salt and 1/4 teaspoon black pepper, adjusting to your preference. The sauce will look thin at this point, but don’t worry; the rice will absorb it in the oven and turn creamy.

Step 4: Bake the Casserole

Nestle the browned chicken breasts on top of the rice mixture, along with any juices that collected on the plate. Cover the pan tightly with foil or a lid, then transfer it to the preheated oven. Bake for 25 minutes. Remove the cover and bake uncovered for another 5 to 10 minutes, until the thickest part of the chicken reaches 165°F (74°C) and the rice is tender. If the top of the rice looks dry before the uncovered bake, drizzle a tablespoon of warm broth over it.

Step 5: Fluff the Rice and Serve

Remove the pan from the oven and let it rest for 5 minutes. The rice will settle and any last pockets of liquid will absorb. Fluff the rice gently with a fork, then spoon it onto plates alongside a piece of chicken. Scatter chopped parsley over the top if you’d like. The rice will be creamy and garlicky, and the chicken will shred easily with a fork.

A Few Tips for the Best Casserole

• If your chicken breasts are very thick, slice them horizontally into thinner cutlets so they cook through at the same rate as the rice.
• That 5-minute rest after baking matters for the rice too—it lets the grains firm up slightly so you get fluffy texture, not mush.
• An instant-read thermometer is the easiest way to know the chicken is done. Pull it at 160°F and the temperature will climb to 165°F as it rests.
• The starch from the rice and the Parmesan will thicken the sauce on its own, so resist the urge to add extra flour or cornstarch.

Bake times will vary slightly depending on the thickness of your chicken breasts.

Storing Leftovers

• Refrigerate: keep leftover casserole in an airtight container for up to 4 days. The rice will stay tender if you add a small splash of broth before reheating.
• Reheating: warm individual portions in the microwave, covered, or in a 350°F oven for 15 to 20 minutes with a foil lid and a tablespoon of water or broth.

What to Serve with Chicken and Rice Casserole

A simple green salad with a sharp lemon vinaigrette cuts through the creamy rice nicely. Steamed green beans or roasted broccoli add color and a bit of crunch. If you want something quick, a handful of pickled red onions on the side brings a bright, tangy pop.

Frequently Asked Questions

Can I use chicken thighs instead?

Yes, boneless thighs work equally well. Brown them the same way and check for doneness; they usually cook in a similar time. Bone-in, skin-on thighs will need about 10 to 15 minutes longer.

What if I only have brown rice?

Brown rice needs more liquid and time. Increase the broth to 2 1/2 cups, cover, and bake for 50 to 60 minutes before uncovering. The texture will be chewier, and the flavor will be nuttier.

Can I assemble this casserole ahead of time?

You can prepare the rice mixture and nestle in the browned chicken, then cover and refrigerate for up to 4 hours. Add about 10 minutes to the covered bake time because you’re starting cold.

My rice came out crunchy. What went wrong?

The pan probably lost too much steam, either from an imperfect seal or an oven that runs cool. Add 1/4 cup warm broth, cover tightly with foil, and bake 10 more minutes, then check again.

Chicken Breast and Rice Casserole Recipe

Print Recipe Pin Recipe

Prep Time 15 minutes mins

Cook Time 40 minutes mins

Total Time 55 minutes mins

Servings: 4 servings

Calories: 520

Ingredients Method Notes

Ingredients

  

• 4 boneless, skinless chicken breasts (about 1.5 lb total)
• 2 tbsp olive oil, divided
• 1 medium yellow onion, finely diced
• 3 cloves garlic, minced
• 1 cup long-grain white rice, rinsed
• 2 cups low-sodium chicken broth
• 1/2 cup heavy cream
• 1 tbsp Dijon mustard
• 1/2 cup freshly grated Parmesan cheese
• 1 tsp dried thyme
• 1/2 tsp salt, plus more for the chicken
• 1/4 tsp black pepper
• Chopped fresh parsley, for serving (optional)

Method

 

1. Preheat oven to 400°F (200°C). Pat chicken dry, season with salt and pepper, and brown in 1 tbsp olive oil over medium-high heat, 3 minutes per side. Transfer to a plate.
2. Reduce heat to medium, add remaining 1 tbsp oil, and cook onion with a pinch of salt until soft, about 5 minutes. Stir in garlic and thyme, then add rinsed rice and toast 1 to 2 minutes.
3. Pour in broth, cream, and Dijon mustard. Stir, scraping up browned bits, then bring to a simmer. Stir in Parmesan, salt, and pepper.
4. Nestle chicken on top of rice, cover tightly, and bake 25 minutes. Uncover and bake 5 to 10 minutes more until chicken reaches 165°F (74°C) and rice is tender.
5. Rest 5 minutes, then fluff rice with a fork and serve with chicken. Garnish with parsley if desired.

Notes

If your chicken breasts are very thick, pound them to an even thickness or slice them in half horizontally so they cook through at the same rate as the rice. Long-grain white rice works best here; do not substitute minute rice.