1-First Step: Get the oven and dish ready Start by preheating your oven to 350 degrees Fahrenheit. Lightly grease a baking dish large enough to hold the chicken and rice comfortably. A standard 9×13-inch dish works well for this recipe, though any similar casserole dish should do the job. While the oven heats, gather all ingredients so everything is ready to go. This makes the whole process smoother, especially if you are cooking with kids or trying to move fast after work.

2-Second Step: Mix the rice base In the prepared baking dish, add 1 cup uncooked long grain white rice, 1 1/2 cups water, 1 ounce dry onion soup mix, and 10.5 ounces condensed cream of mushroom soup. Stir everything together until the rice is coated and the mixture looks evenly combined. This creamy base is what gives the casserole its cozy, rich flavor. If you want a little more seasoning, this is the moment to add a small pinch of black pepper. Keep in mind that the onion soup mix already brings plenty of salt and savory depth.

3-Third Step: Add the chicken Place 4 boneless skinless chicken breasts on top of the rice mixture. Nestle them down gently so they sit partly in the sauce, which helps them stay moist while baking. Try to arrange them in a single layer so they cook evenly. If your chicken breasts are very thick, you can pound them lightly to an even size before baking. This helps the casserole cook more evenly and keeps the chicken tender.

4-Fourth Step: Cover and bake Cover the dish tightly with foil and bake for about 1 hour and 15 minutes. The foil traps moisture, which helps the rice soften and the chicken cook through without drying out. Avoid lifting the foil too often, since that can release steam and slow down the cooking process. At the halfway mark, you can carefully check to make sure the casserole still looks moist. If the rice seems dry, add a small splash of water around the edges before re-covering. This small fix can help if your oven runs hot or the dish has a loose seal.

5-Fifth Step: Check for doneness When the cooking time is up, remove the foil and check the chicken. The internal temperature should reach 165 degrees Fahrenheit in the thickest part. The rice should be tender and the sauce should look creamy, not watery. If the rice still needs a little more time, cover the dish again and bake for another 5 to 10 minutes. If you are serving picky eaters or younger kids, slice one piece of chicken and fluff the rice so the casserole looks extra inviting. Sometimes a simple presentation makes a big difference at the table.

6-Final Step: Rest, serve, and enjoy Let the Chicken Rice Casserole rest for about 5 to 10 minutes before serving. This helps the sauce settle and makes it easier to scoop onto plates. Serve it warm and enjoy the creamy, savory comfort in every bite. You can keep it simple, or add a quick side like green beans, a tossed salad, or roasted carrots. That little bit of color on the plate makes dinner feel complete without adding much work.