When you need a warm, satisfying dinner that feels like a hug, Chicken Rice Gratin is the perfect choice. It’s creamy, hearty, and loaded with tender chicken, fluffy rice, and a rich sauce—all baked under a bubbly, golden cheese topping.
Unlike complicated casseroles, this homemade gratin uses simple pantry ingredients and comes together easily, making it ideal for weeknight dinners, meal prep, or feeding a crowd. One bite and you’ll understand why this dish is a comfort-food classic.
Ingredients
Serves 6
For the Gratin
- 2 cups (about 300g) cooked rice (white or brown)
- 2 cups (about 300g) cooked chicken, shredded or diced (rotisserie works well)
- 1 tablespoon olive oil or butter
- 1 small onion, finely chopped
- 2 cloves garlic, minced
- 2 cups (480ml) milk (or half milk/half broth)
- 1 cup (240ml) chicken broth
- 3 tablespoons all-purpose flour
- 2 tablespoons butter
- 1 teaspoon Dijon mustard (optional)
- 1/2 teaspoon salt (adjust to taste)
- 1/2 teaspoon black pepper
- 1/2 teaspoon paprika
- 1/2 teaspoon dried thyme or Italian seasoning
- 1 cup (100g) shredded mozzarella
- 1 cup (100g) shredded cheddar (or Gruyère for a classic gratin flavor)
Topping
- 1/2 cup (50g) breadcrumbs (panko preferred)
- 2 tablespoons grated Parmesan
- 1 tablespoon melted butter
- 1 tablespoon chopped parsley (optional)
Optional add-ins:
- 1 cup steamed broccoli, peas, or spinach
- 1/2 cup sautéed mushrooms
Preparation Time
- Prep time: 15 minutes
- Cooking time: 20 minutes
- Bake time: 20–25 minutes
- Total time: About 55–60 minutes
Step-by-Step Instructions
Step 1: Preheat and Prep
Preheat oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish.
Step 2: Sauté Aromatics
In a skillet, heat olive oil or butter. Cook onion for 3–4 minutes until soft. Add garlic and cook 30 seconds.
Step 3: Make the Creamy Sauce
In the same skillet, melt 2 tablespoons butter. Whisk in flour and cook 1 minute to form a roux.
Slowly whisk in milk and broth. Simmer 3–5 minutes until thickened. Stir in mustard (optional), salt, pepper, paprika, and thyme.
Step 4: Combine the Filling
In a large bowl, mix cooked rice, chicken, sautéed onion/garlic mixture, and the creamy sauce. Stir in half the mozzarella and cheddar.
Step 5: Assemble
Spread the mixture into the baking dish. Top with remaining cheese.
Step 6: Add the Crunchy Topping
Mix breadcrumbs, Parmesan, melted butter, and parsley. Sprinkle over the top.
Step 7: Bake
Bake for 20–25 minutes, until bubbly and golden. Broil for 1–2 minutes if you want extra browning.
Step 8: Serve
Let rest 5 minutes before serving. Scoop and enjoy warm.
Serving Suggestions
- Serve with a crisp green salad or roasted vegetables.
- Pair with garlic bread or dinner rolls for a full comfort-food meal.
- Add a side of steamed green beans for a simple balance.
- For a brighter finish, squeeze a little lemon on top before serving.
- Great for leftovers—reheats beautifully.
Nutritional Highlights
| Nutrient | Per Serving (1/6 recipe) |
|---|---|
| Calories | 430 |
| Protein | 28 grams |
| Total Fat | 18 grams |
| Saturated Fat | 8 grams |
| Carbohydrates | 38 grams |
| Sugars | 6 grams |
| Fiber | 2 grams |
| Sodium | 620 milligrams |
Nutritional Notes:
- Chicken provides lean protein to keep the dish filling.
- Rice adds satisfying carbs and makes this gratin family-friendly.
- Using a mix of cheeses boosts flavor—reduce amounts for a lighter version.
Tips for Perfect Gratin
- Use warm, cooked rice so it blends easily and heats evenly.
- Don’t over-thicken the sauce—gratin should be creamy, not dry.
- Rotisserie chicken saves time and adds great flavor.
- For extra creaminess, add 2 tablespoons sour cream to the sauce.
- Broil briefly at the end for a crisp, golden top.
Variations to Try
- Broccoli Chicken Rice Gratin: Stir in steamed broccoli before baking.
- Mushroom Swiss: Use sautéed mushrooms and Swiss cheese.
- Spicy Version: Add diced jalapeños or a pinch of cayenne.
- Low-Carb Option: Replace rice with cauliflower rice (reduce liquid slightly).
- One-Pan Shortcut: Use canned cream of chicken soup + milk instead of homemade sauce.
This Chicken Rice Gratin is creamy, cheesy, and perfectly comforting—an easy baked dish that tastes like it took hours. With tender chicken, fluffy rice, and a crunchy golden topping, it’s the kind of meal that brings everyone back for seconds.
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