This oven-baked chicken and spinach rice casserole is the kind of cozy, reliable dinner you’ll want on repeat: tender chicken, creamy rice, plenty of spinach, and a golden top that tastes like comfort in every bite. It’s easy enough for weeknights, but still feels special—especially with a simple salad on the side.
Why you’ll love this casserole
- One-pan comfort: Rice bakes up creamy while the chicken stays juicy.
- Family-friendly: Mild flavors, customizable add-ins, and great leftovers.
- Meal-prep win: Reheats beautifully for lunches and quick dinners.
- Smart shortcut options: Use rotisserie chicken or leftover cooked rice if you want.
Ingredients you’ll need
- Chicken: Boneless, skinless chicken breasts or thighs (thighs stay especially juicy).
- Rice: Long-grain white rice (uncooked). Avoid instant rice unless the package says it’s oven-bake friendly.
- Spinach: Fresh baby spinach or thawed frozen spinach (squeezed very dry).
- Aromatics: Onion and garlic for a savory base.
- Liquid: Chicken broth (plus a splash of milk or half-and-half for extra creaminess).
- Creamy binder: Cream cheese or sour cream (either works).
- Cheese: Mozzarella for melt + Parmesan for flavor.
- Seasoning: Salt, black pepper, Italian seasoning, and a pinch of red pepper flakes (optional).
- Finish: Butter for richness and a little extra Parmesan for a golden top.
How to make oven-baked chicken and spinach rice casserole
1) Prep. Preheat your oven to 375°F. Lightly butter or spray a 9×13-inch baking dish.
2) Build the flavorful base. In a skillet, sauté diced onion in a little butter or olive oil until soft. Add garlic and cook just until fragrant.
3) Mix the casserole. In a large bowl, combine uncooked rice, warm sautéed onion/garlic, chicken broth, milk (or half-and-half), cream cheese (or sour cream), Italian seasoning, salt, and pepper. Stir until the cream cheese is mostly incorporated.
4) Add the spinach and chicken. Fold in spinach and bite-size pieces of chicken (raw is fine—it will cook as it bakes). Stir in mozzarella and Parmesan.
5) Bake covered, then uncover. Pour into the baking dish and spread evenly. Cover tightly with foil and bake until the rice is tender and most of the liquid is absorbed. Uncover for the final few minutes so the top gets lightly golden and bubbly.
6) Rest, then serve. Let it sit for 10 minutes before scooping. This helps it set up creamy instead of soupy.
Timing and doneness tips (so the rice turns out perfect)
- Cover tightly: Rice needs steam. Use foil and crimp the edges well.
- Check the center: If the middle rice is still firm, add a splash of hot broth, re-cover, and bake 8–12 minutes more.
- Chicken safety: Chicken should reach 165°F in the thickest pieces.
- Rest time matters: The casserole thickens as it cools for a few minutes.
Easy variations
- Rotisserie shortcut: Use cooked shredded chicken and bake just until the rice is tender.
- Brown rice: Needs more liquid and longer bake time—follow your rice package guidance for oven methods.
- Extra veggies: Stir in sautéed mushrooms, diced bell pepper, or peas.
- More zing: Add lemon zest at the end or a squeeze of lemon juice before serving.
- Cheesy top: Sprinkle extra mozzarella and Parmesan during the uncovered bake.
What to serve with chicken and spinach rice casserole
- Simple arugula salad with lemon vinaigrette
- Roasted broccoli or green beans
- Garlic bread or warm dinner rolls
- A crisp cucumber-tomato salad for contrast
Storage, freezing, and reheating
- Refrigerate: Store covered in the fridge for up to 4 days.
- Freeze: Cool completely, then freeze portions in airtight containers for up to 2 months.
- Reheat: Microwave with a splash of broth to loosen. Or cover and warm in a 350°F oven until hot throughout.
Oven-Baked Chicken and Spinach Rice Casserole (Printable Recipe)
Ingredients
- 1 tbsp butter or olive oil, plus more for the baking dish
- 1 medium yellow onion, diced
- 3 cloves garlic, minced
- 1 1/2 cups long-grain white rice, uncooked
- 3 cups chicken broth (warm if possible)
- 1/2 cup milk or half-and-half
- 4 oz cream cheese, softened (or 1/2 cup sour cream)
- 1 1/2 tsp Italian seasoning
- 1 1/4 tsp kosher salt (adjust to taste)
- 1/2 tsp black pepper
- Pinch red pepper flakes (optional)
- 1 1/2 lb boneless, skinless chicken breasts or thighs, cut into bite-size pieces
- 5–6 oz baby spinach (or 10 oz frozen spinach, thawed and squeezed dry)
- 1 1/2 cups shredded mozzarella
- 1/2 cup grated Parmesan, plus more for topping
Instructions
- Preheat oven to 375°F. Butter a 9×13-inch baking dish.
- In a skillet over medium heat, melt butter (or heat oil). Sauté onion 4–5 minutes until softened. Add garlic and cook 30 seconds.
- In a large bowl, stir together rice, broth, milk, cream cheese (or sour cream), Italian seasoning, salt, pepper, and red pepper flakes (if using) until combined.
- Fold in chicken, spinach, mozzarella, and Parmesan.
- Spread evenly in the baking dish. Cover tightly with foil and bake 40–50 minutes, or until rice is tender and chicken is cooked through (165°F).
- Uncover and bake 8–12 minutes more to lightly brown the top.
- Rest 10 minutes before serving.
Notes
- Using frozen spinach: Squeeze out as much water as possible to keep the casserole creamy, not watery.
- If the rice needs more time: Add 1/4 cup hot broth, re-cover, and bake 8–12 minutes more.
- For extra creaminess: Stir in an additional 2–3 tbsp sour cream after baking, then rest before serving.
Not sure what to cook tonight? Some nights, you just want something simple that works without overthinking it. If you’re looking for easy, reliable meal ideas, take a look at our easy dinner recipes that always work. You’ll find go-to meals you can come back to anytime.
