Broccoli Chicken Cauliflower Casserole
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This Broccoli Chicken Cauliflower Casserole is a delicious, high-protein meal that makes the perfect healthy weeknight dinner or meal-prep recipe. With over 40 grams of protein per serving, this healthy family dinner is packed with so many filling, healthy nutrients!
These cruciferous vegetables support hormonal balance, heart health, and overall wellness. If you're looking for a nutritious, low-carb, gluten-free chicken casserole that still tastes like comfort food, this one checks every box!
If you love chicken and broccoli, be sure to check out my Lighter Chicken Alfredo with Broccoli!
Quick Look: Broccoli Chicken Cauliflower Casserole
- 🕒 Total Time: 1 hour, 10 minutes
- 👥 Servings: 8
- 📊 Calories: 360 per serving
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Why You'll Love This Casserole
✔️ High-Protein & Balanced - This dish is packed with cooked, lean chicken breast plus fiber from the broccoli and cauliflower along with antioxidants and other important nutrients to keep your body healthy.
✔️ Prep Early - If you've got busy weeknights, you can prep this ahead of time and keep it in the fridge until you're home and ready to bake.
✔️ Flavor-Packed - Don't let the chicken and veggies fool you... you'll get lots of flavor from the seasonings and cheese!
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Select Ingredients
- Chicken Breasts - You can bake or grill the chicken ahead of time or use a rotisserie chicken to save you time.
- The veggies - I prefer to use the frozen steamable bags of broccoli and cauliflower rice. It's super easy and requires no dirty dishes!
- Cheese - I use a blend of mozzarella cheese and Italian cheeses. Shredded the cheese yourself makes the cheese more creamy and I'd suggest this if you've got the time!
- Seasonings - salt, garlic powder, & onion powder
See the recipe card for full information on ingredients and quantities.
Recipe Tips & Variations
➡️ Make Ahead - You can prep this dish through step 6, then cover with foil and place in your refrigerator until you're ready to bake it if you'd like to do a little prep ahead of your meal time!
➡️ Chicken - If you want to use less chicken, you can! I like to use 2 lbs for the extra protein. It seems to make the recipe a little more hearty.
➡️ Meal Prep Friendly - Store leftovers in an airtight container in the fridge for up to 3-4 days. Can freeze this recipe for about 3 months. I'd recommend freezing in individual containers for easy access.
How to Make Broccoli Chicken Cauliflower Casserole
Step 1: In a large bowl, add cooked cauliflower rice, broccoli, chicken, eggs, mozzarella cheese, salt, garlic powder, onion powder and melted butter. Toss together until fully combined.
Step 2: Transfer casserole mixture to the greased 9x13 baking dish and top with the Italian blend cheese.
Step 3: Bake at 400°F for 50 minutes or until cheese has melted and becomes slightly brown on top. Let cool for about 10 minutes before serving.
Recipe FAQs
Yes! You can assemble the entire casserole up to 24 hours in advance. Keep it covered in the refrigerator, then bake it when you're ready. If baking straight from the fridge, you may need to add an extra 5-10 minutes to the bake time.
Yes! It will require a little extra work to cook and prep but you can absolutely use fresh if that's what you have on hand.
Store leftovers in an airtight container in the refrigerator for 3-4 days. Reheat individual portions in the microwave for 1-2 minutes, or warm the entire casserole in the oven at 350°F until heated through.
Check out my Wholesome Meals Made Easy meal planning app for easy, healthy recipes your whole crew will actually love. It's like having a dietitian in your back pocket - quick, balanced, and family-approved!
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Broccoli Chicken Cauliflower Casserole
Ingredients
- 2 pounds skinless boneless chicken breasts can also use pre-cooked, cubed chicken and skip first 2 steps
- 2 10- ounce bags frozen cauliflower rice or 1 head of cauliflower, riced and cooked
- 1 16- ounce bag frozen broccoli cuts
- 2 large eggs whisked
- 3 cups shredded mozzarella cheese
- 2 teaspoons coarse sea salt
- 2 teaspoons garlic powder
- 2 teaspoons onion powder
- 2 tablespoons butter melted
- 1 cup shredded Italian blend cheese
Instructions
- Preheat oven to 400°F. Spray a large 3-quart baking dish with non-stick cooking spray or olive oil. Set aside.
- If you've not yet cooked your chicken, grill it on the stove top. You can also bake it if preferred, though this takes a bit longer.
- While the chicken is baking, heat the bags of frozen cauliflower rice and broccoli according to package instructions. Discard any excess water or moisture.
- Carefully chop baked chicken into bite-sized pieces.
- In a large bowl, add cooked cauliflower rice, broccoli, chicken, eggs, mozzarella cheese, salt, garlic powder, onion powder and butter. Toss together until fully combined.
- Transfer casserole mixture to the prepared baking dish and top with the remaining Italian blend cheese.
- Bake for 50 minutes, until the cheese on top has fully melted and started to brown slightly. Let cool for 10 minutes before serving.
This is our go to recipe when we need some extra veggies in our life! Love the nutritional profile and the flavor of this one and my kids even love it!