Recipe

Chicken Broccoli Rice Casserole

Creamy, cheesy, and packed with chicken and broccoli, this family-style casserole bakes up bubbly with crisp edges and cozy comfort in every scoop.

By Matt Campbell

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A golden, bubbly chicken broccoli rice casserole in a ceramic baking dish on a light kitchen counter with a serving spoon

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Chicken broccoli rice casserole is one of those dinners that feels like a warm hoodie for your whole evening. Cozy, filling, and forgiving, it is the kind of thing you can pull together with leftover chicken, rotisserie chicken, or whatever is already doing time in your fridge. Same story with the rice. The goal is simple: creamy rice that stays tender, broccoli that is bright and not sad, and a cheesy top that gets those little golden spots that make you hover by the oven.

This version keeps the ingredients accessible, but it still tastes like you tried. We build flavor with a quick sauté of onion and garlic, then use a simple creamy base that bakes up rich without turning into glue. Bonus: it reheats like a champ, which is basically future-you sending a thank-you note.

Chicken broth, cooked rice, shredded cheese, broccoli florets, cooked chicken, sour cream, and seasonings arranged on a bright kitchen counter

Why It Works

Comfort-food texture, not mush: Using cooked rice and the right amount of liquid keeps it creamy and spoonable without going watery or gummy.
Broccoli stays vibrant: A quick blanch or steam keeps it green and tender-crisp so it does not dissolve into the sauce.
Big flavor from small moves: Sautéed onion and garlic plus a little Dijon and paprika make the whole thing taste intentional.
Golden, cheesy top: A generous layer of cheddar and a short broil at the end gives you crisp edges and that bubbly finish.

Pairs Well With

Storage Tips

Refrigerate: Let the casserole cool, then cover the dish or transfer to airtight containers. Store up to 4 days.

Freeze: Portion into freezer-safe containers and freeze up to 3 months. Thaw overnight in the fridge for best texture.

Reheat: For the best result, reheat covered in a 350°F oven until hot, about 20 to 30 minutes (less for smaller portions). Microwave works too, just add a splash of broth or milk and stir halfway through to bring the creaminess back.

Portions of chicken broccoli rice casserole stored in clear glass meal prep containers on a kitchen counter

Common Questions

Can I use raw chicken in this casserole?

I do not recommend it for this specific method. The rice and sauce bake fast, and raw chicken can throw off timing and liquid. Use cooked chicken (rotisserie, leftover roasted, or poached) for consistent results.

Do I have to cook the rice first?

Yes, this recipe is designed for cooked rice. Using uncooked rice needs a different liquid ratio and bake time.

Fresh or frozen broccoli?

Either works. Fresh broccoli gives the best texture. If using frozen, thaw and drain well, then pat dry so your casserole does not get watery.

What if my casserole seems dry?

Rice can vary a lot. If it looks dry when you uncover it, stir in a splash of warm broth or milk, then bake 5 more minutes. Also make sure you are not packing the rice too tightly when measuring.

Can I make it ahead?

Yes. Assemble, cover, and refrigerate up to 24 hours. When baking from cold, add about 10 to 15 minutes and keep it covered for most of the bake so it heats through without drying out.

Does rice texture matter?

It does. Cooled or day-old rice works best because it is a little drier and stays nicely spoonable. If your rice is freshly cooked and very moist, you can either reduce the broth by about 1/4 cup or bake uncovered a few extra minutes at the end to let excess moisture cook off.

Matt Campbell

I have always had a huge passion for the culinary arts, people, working as a team, and so on. I wanted to pursue my love for cooking initially at Virginia Commonwealth University with a culinary arts degree; however, I instead decided to apply myself and acquire more practical skills. My end goal is to eventually open my own restaurant or similar establishment.

Kitchen Essentials

9x13-inch baking dish
Large skillet
Medium pot (for blanching broccoli) or microwave steamer bowl
Mixing bowl
Measuring cups and spoons
Chef’s knife and cutting board
Aluminum foil

This is the casserole I make when I want dinner to feel like a group project that actually goes well. Practical, crowd-feeding, and not at all precious, it forgives you if you are a little chaotic. I have made it with leftover grilled chicken, with rotisserie chicken I swore I would use for salads, and once with rice that was already clumping in the fridge. Every time, it comes out creamy and comforting. The best part is serving it straight from the dish at the table, because it signals, "Relax, you are home."

Chicken Broccoli Rice Casserole

( Reviews)

Prep Time 20 minutes

Cook Time 35 minutes

Total Time 55 minutes

Servings 6 to 8

Ingredients

2 tablespoons unsalted butter
1 small yellow onion, finely chopped
3 garlic cloves, minced
2 tablespoons all-purpose flour
1 3/4 cups low-sodium chicken broth (see note if rice is very moist)
1 cup whole milk (or 2% milk)
1/2 cup sour cream
1 tablespoon Dijon mustard
1 teaspoon kosher salt, plus more to taste
1/2 teaspoon black pepper
1/2 teaspoon smoked paprika (or sweet paprika)
4 cups broccoli florets (about 12 to 16 oz florets, roughly 1 large head)
3 cups cooked chicken, shredded or diced
3 cups cooked rice (white or brown), cooled slightly (day-old is great)
2 1/2 cups shredded sharp cheddar cheese, divided
1/3 cup grated Parmesan cheese
Optional: 1/2 cup crushed buttery crackers or panko for topping
Optional: 1 tablespoon olive oil (if using panko)

Shredded cooked chicken, broccoli florets, shredded cheddar, and cooked rice arranged in bowls on a neutral kitchen counter

Instructions

Heat the oven. Preheat to 375°F. Grease a 9x13-inch baking dish with butter or nonstick spray. (This fills a standard 9x13 nicely.)
Prep the broccoli. Bring a pot of salted water to a boil. Add broccoli and blanch for 1 to 2 minutes for small florets, or up to 3 minutes for larger pieces, until bright green and just tender-crisp. Drain and rinse under cold water, then shake well and pat dry. (If you skip this, the broccoli can release water while baking.)
Build the creamy base. In a large skillet over medium heat, melt butter. Add onion and cook 4 to 5 minutes until softened. Add garlic and cook 30 seconds.
Thicken it. Sprinkle flour over the onions and stir for 1 minute. Slowly whisk in chicken broth, then milk. Simmer 3 to 5 minutes, whisking often, until the sauce lightly thickens and coats the back of a spoon.
Finish the sauce off the heat. Turn the heat off (important so the sour cream stays smooth), then whisk in sour cream, Dijon, salt, pepper, and paprika.
Mix the casserole. In a large bowl, combine cooked rice, chicken, blanched broccoli, the sauce, 1 1/2 cups cheddar, and Parmesan. Stir until everything is evenly coated.
Assemble. Spread the mixture into the prepared baking dish. Top with remaining 1 cup cheddar. If using crackers or panko, sprinkle over the top (toss panko with olive oil first for better browning).
Bake. Cover with foil and bake for 20 minutes. Uncover and bake 10 to 15 minutes more until bubbly and lightly golden around the edges.
Optional crisp finish. For extra golden top, broil for 1 to 2 minutes. Stay close. Broilers do not play.
Rest and serve. Let it sit 10 minutes before scooping so it sets up and stays creamy. Taste and add a pinch more salt or pepper if needed.