Chicken Broccoli Casserole

The smell of this casserole baking takes me back to rainy Tuesday evenings when my mom would pull something together from whatever was in the fridge. I still remember standing on a chair watching her stir the creamy sauce, fascinated by how a few simple ingredients could transform into something so comforting. Now I find myself making the same dish on hectic weeknights when my family needs something warm and filling.

Last winter my neighbor was recovering from surgery, so I brought over a pan of this casserole. She texted me two days later asking for the recipe because her teenage son who normally survives on pizza had gone back for thirds. Something about that bubbly topping and creamy middle just works on everyone.

Ingredients

• 3 cups cooked chicken breast: Rotisserie chicken works beautifully here, or use leftover chicken from a previous meal
• 4 cups broccoli florets: Fresh gives better texture but frozen works perfectly if thawed and drained well
• 1 small yellow onion: Finely chopped so it melts into the creamy sauce rather than staying chunky
• 1 1/2 cups shredded cheddar cheese: Divided use so you get cheese throughout and that gorgeous melted layer on top
• 1 cup sour cream: Adds tang and creaminess that balances the rich soup base
• 1/2 cup milk: Whole milk gives the best texture but whatever you have in the fridge works
• 1 can cream of chicken soup: The classic binder that makes everything come together perfectly
• 1 cup cooked white rice: Optional but makes it more filling and stretches the recipe further
• 1/2 cup panko breadcrumbs: Creates the crispiest, most satisfying golden topping
• 2 tbsp unsalted butter: Melted and mixed with breadcrumbs for that buttery crunch
• 1/2 tsp garlic powder: Subtle flavor that enhances without overpowering
• 1/2 tsp salt and 1/4 tsp black pepper: Basic seasoning to bring everything together
• 1/4 tsp paprika: Mostly for color on that beautiful golden crust

Instructions

Get your oven ready:

Preheat to 375°F and grease a 9x13 baking dish with butter or cooking spray

Prep the broccoli:

Steam or blanch those florets for just 2-3 minutes until they turn bright green but still have some crunch

Mix everything together:

Combine chicken, broccoli, onion, 1 cup cheese, soup, sour cream, milk, rice if using, and all seasonings in a large bowl

Spread it out:

Pour the mixture into your prepared dish and press it down evenly

Make the crispy topping:

Stir together panko, melted butter, and paprika until every crumb is coated

Add the layers:

Sprinkle remaining cheese over the casserole, then cover with those buttery breadcrumbs

Bake until golden:

Bake uncovered for 30-35 minutes until you see bubbling around the edges and that top is gorgeously browned

Let it rest:

Wait 5 minutes before serving so the sauce sets up slightly and makes serving easier

Save

My daughter declared this her birthday dinner request after I started making it regularly. The way she gets excited when she sees that golden crust coming out of the oven makes all the prep worth it every single time.

Making It Lighter

Swapping Greek yogurt for sour cream and using reduced-fat cheese actually works surprisingly well here. The texture stays creamy and nobody notices the difference except my scale the next morning.

Make Ahead Magic

I have assembled this the night before and kept it in the fridge, adding just 5-10 minutes to the baking time. The flavors actually meld together even better when they have time to hang out overnight.

Serving Ideas

A crisp green salad with vinaigrette cuts through the richness beautifully. Crusty bread is also perfect for mopping up that cheesy sauce.

• Leftovers reheat surprisingly well in the microwave with a splash of milk
• This freezes beautifully for up to 3 months if wrapped tightly
• Consider doubling the recipe because it disappears faster than you expect

Save

There is something so satisfying about pulling a bubbling, golden casserole out of the oven and watching everyone gather around the table.

Recipe FAQs

→ Can I make this ahead of time?

Yes, assemble the entire dish up to 24 hours in advance and refrigerate. Add an extra 10-15 minutes to the baking time if baking cold from the refrigerator.

→ Can I freeze this dish?

Absolutely. Freeze before baking for up to 3 months. Thaw overnight in the refrigerator, then bake as directed. You can also freeze leftovers in individual portions.

→ What can I use instead of cream of chicken soup?

Make a simple homemade sauce with butter, flour, chicken broth, and cream. Or substitute with cream of mushroom soup for a different flavor profile.

→ Do I have to precook the broccoli?

Lightly steaming or blanching the broccoli ensures it cooks evenly and stays bright green. Skip this step and the broccoli may be undercooked in the finished dish.

→ Can I use rotisserie chicken?

Rotisserie chicken works perfectly and adds extra flavor. You'll need about 2-3 cups of meat from a store-bought rotisserie chicken.