How to Make Dump-and-Bake Chicken Alfredo Rice Casserole

Step 1: Preheat the Oven
Set your oven to 375°F (190°C). Prepare a 9×13-inch baking dish by lightly greasing it with cooking spray.

Step 2: Combine the Base
In your prepared baking dish, dump in 1 ½ cups of uncooked long-grain white rice, 2 cups of diced raw chicken, 2 ½ cups of chicken broth, 1 jar (15 oz) of Alfredo sauce, 1 teaspoon garlic powder, 1 teaspoon onion powder, and salt and pepper to taste. Stir everything together until well combined. Make sure the rice is fully submerged in liquid.

Step 3: Add Vegetables (Optional)
If using peas or broccoli, sprinkle about 1 to 1 ½ cups evenly over the top. They’ll cook right along with everything else and add a fresh, vibrant note.

Step 4: Cover and Bake
Tightly cover the dish with aluminum foil and bake for 50–60 minutes. The rice should be soft and the chicken fully cooked.

Step 5: Add Cheese Topping
Carefully remove the foil, sprinkle 1 ½ cups of shredded mozzarella and ½ cup of grated Parmesan cheese over the top. Return to the oven uncovered and bake for another 10–15 minutes, or until the cheese is melted and bubbly.

Step 6: Rest Before Serving
Let the casserole sit for 5–10 minutes before serving. This allows the rice to absorb any remaining liquid and helps the casserole set.

Pro Tips for the Best Results

Don’t Overcrowd the Dish – Make sure the ingredients are evenly spread to ensure even cooking
Use Freshly Shredded Cheese – It melts better and gives you that stretchy, golden finish
Let it Sit – Allowing it to rest after baking makes slicing and serving easier
Double for a Crowd – This recipe scales beautifully if you’re feeding more people

Make It Your Own: Easy Variations

Spicy Kick – Add red pepper flakes or a few dashes of hot sauce to the base mixture
Herb Boost – Mix in a teaspoon of Italian seasoning or fresh chopped parsley for extra depth
Swap the Protein – Use cooked rotisserie chicken or turkey if you’re short on time
Low-Carb Version – Sub cauliflower rice for a lighter option (adjust cooking time accordingly)

Storage and Reheating Instructions

Refrigerator – Store leftovers in an airtight container for up to 4 days
Freezer – Freeze individual portions for up to 2 months. Thaw overnight in the fridge
Reheating – Microwave covered with a damp paper towel or bake at 350°F until heated through

Perfect Side Dishes to Serve With Chicken Alfredo Casserole

Garlic Bread – A crunchy slice of garlic bread is the perfect vehicle to scoop up that creamy sauce
Caesar Salad – Crisp romaine with a tangy dressing balances the richness of the casserole
Roasted Vegetables – Carrots, green beans, or zucchini offer a colorful, healthy complement