This healthier broccoli chicken casserole is creamy, comforting, and packed with lean protein and veggies. Made with wholesome ingredients, it’s a lighter version of a classic casserole—perfect for weeknight dinners or make-ahead meals.
Preheat your oven to 375°F (190°C). Lightly grease a baking dish (9x13-inch).
Mix the Filling:
In a large bowl, combine cooked chicken, steamed broccoli, cooked rice (if using), chopped onion, garlic, Greek yogurt, milk, cheddar, Parmesan, Dijon mustard, and seasonings. Mix until well combined.
Assemble the Casserole:
Pour the mixture into the prepared baking dish and spread evenly.
Add the Topping:
In a small bowl, mix breadcrumbs, Parmesan, and olive oil. Sprinkle evenly over the top of the casserole.
Bake:
Bake for 25–30 minutes, until bubbly and the top is golden brown. Let rest for 5 minutes before serving.
Notes
Make Ahead: Assemble the casserole ahead and refrigerate up to 24 hours before baking.Customising Flavours: Add mushrooms or chopped spinach for more veggies. Use cauliflower rice for a lower-carb option.Serving Suggestions: Serve with a simple green salad or roasted carrots for a complete meal.Allergy-Friendly Options: Use dairy-free cheese and yogurt to make it suitable for dairy-sensitive diets.Storage Tips: Store leftovers in an airtight container in the fridge for up to 4 days. Reheat in the oven or microwave.