Creamy chicken quinoa and broccoli casserole is the kind of meal that checks all the boxes. It’s comforting yet healthy, creamy without being heavy, and filling without feeling greasy. Packed with lean protein, fiber-rich quinoa, and nutrient-dense broccoli, this casserole is perfect for busy weeknights, meal prep, or feeding the whole family.
Unlike traditional casseroles made with pasta or rice, quinoa adds a light, fluffy texture and boosts the nutritional value. Combined with juicy chicken and a creamy sauce, this dish delivers cozy comfort while still feeling wholesome and satisfying.
Why You’ll Love This Chicken Quinoa Casserole
This recipe quickly becomes a household favorite because it is:
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High Protein and Fiber
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Creamy, Cheesy, and Comforting
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Easy to Prepare and Bake
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Perfect for Meal Prep and Leftovers
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Family-Friendly and Kid-Approved
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Customizable with Simple Ingredient Swaps
It’s comfort food you can feel good about serving.
Ingredients for Creamy Chicken Quinoa and Broccoli Casserole
Main Ingredients
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1 cup uncooked quinoa
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2 cups cooked chicken, shredded or diced
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2 cups fresh broccoli florets
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1 tablespoon olive oil
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2 cloves garlic, minced
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1 small onion, finely chopped
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1½ cups milk (whole or 2%)
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½ cup chicken broth
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1 cup shredded cheddar cheese
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½ cup shredded mozzarella cheese
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2 tablespoons all-purpose flour
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Salt and black pepper to taste
Optional Add-Ins
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Greek yogurt or sour cream
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Parmesan cheese
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Red pepper flakes
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Mushrooms or spinach
How to Make Creamy Chicken Quinoa and Broccoli Casserole
Step 1: Cook the Quinoa
Rinse quinoa thoroughly under cold water. In a saucepan, cook quinoa according to package instructions until fluffy. Set aside to cool slightly.
Step 2: Prepare the Broccoli
Steam or blanch broccoli florets for 3–4 minutes until bright green and just tender. Drain and set aside.
Step 3: Sauté Aromatics
Heat olive oil in a skillet over medium heat. Add onion and cook until soft. Stir in garlic and cook for 30 seconds until fragrant.
Step 4: Make the Creamy Sauce
Sprinkle flour over the onions and stir for 1 minute. Slowly whisk in milk and chicken broth. Cook until the sauce thickens slightly, then remove from heat.
Stir in cheddar and mozzarella cheese until melted and smooth. Season with salt and black pepper.
Step 5: Combine the Casserole
In a large mixing bowl, combine cooked quinoa, chicken, broccoli, and creamy sauce. Mix until everything is evenly coated.
Step 6: Bake
Preheat oven to 375°F (190°C). Transfer mixture to a greased baking dish and spread evenly.
Bake uncovered for 25–30 minutes, until bubbly and lightly golden on top.
Best Chicken to Use
This casserole works well with:
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Rotisserie chicken
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Baked or grilled chicken breast
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Leftover roasted chicken
Using pre-cooked chicken saves time and adds great flavor.
Serving Ideas
Serve this casserole with:
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A fresh green salad
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Roasted vegetables
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Garlic bread or dinner rolls
Tips for the Best Casserole
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Rinse quinoa to remove bitterness
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Don’t overcook broccoli—it softens more while baking
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Use freshly shredded cheese for smoother sauce
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Let casserole rest 5 minutes before serving
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Add extra broth if mixture feels dry
These tips ensure a creamy, perfectly baked casserole every time.
Healthy Variations
Make this dish fit your lifestyle with simple swaps:
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Lower Carb: Use cauliflower rice instead of quinoa
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Extra Protein: Add more chicken or mix in chickpeas
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Dairy-Light: Use half milk, half broth
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Gluten-Free: Use cornstarch instead of flour
Make-Ahead, Storage & Reheating
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Assemble up to 24 hours ahead and refrigerate
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Store leftovers for 3–4 days in an airtight container
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Reheat in oven or microwave until warmed through
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Freeze for up to 2 months (best without cheese topping)
Perfect for meal prep and busy schedules.
Frequently Asked Questions
Can I use frozen broccoli?
Yes, thaw and drain well before using.
Can I make it without cheese?
Yes, replace cheese with Greek yogurt or dairy-free alternatives.
Is quinoa healthier than rice?
Quinoa contains more protein and fiber than most grains.
Final Thoughts
Creamy chicken quinoa and broccoli casserole is the ultimate healthy comfort food. It’s rich, satisfying, and packed with nutrients, making it ideal for family dinners or weekly meal prep. With its creamy texture, tender chicken, and fluffy quinoa, this casserole is sure to become a regular favorite.