Broccoli Chicken Casserole

A cozy, ultra-creamy broccoli chicken casserole made entirely from scratch without canned soup, featuring a crispy, buttery cracker topping.

Why This Recipe Works:

• A scratch-made roux-based sauce prevents water separation during baking.
• Fresh broccoli is blanched briefly to preserve its vibrant green color and crisp-tender bite.
• A heavy hand of sharp cheddar cheese adds fat and acid to balance the rich cream.

My aunt Karen used to bring a heavy, foil-topped baking dish to every Ohio family reunion, and by the time the lid was peeled back, the broccoli had turned into a sad, gray mush.

I absolutely hated it.

The culprit was always canned condensed soup, which relies on cheap starches that break down into a watery, gloopy mess under high heat.

Think about this in terms of physics.

We need a stable protein matrix and proper starch gelatinization to keep the sauce velvety, which is why we build a scratch-made roux instead of opening a can.

If you love cozy bakes but want a grain-inclusive version, my Chicken Broccoli Rice Casserole is another massive crowd-pleaser.

Broccoli Chicken Casserole

• Publisher Storied Skillet
• Cuisine American
• Category Dinner, Casseroles
• Prep Time 20 mins
• Cook Time 30 mins
• Servings 6
• Calories 480 calories
• Rating 4.8 2287
• Tags broccoli chicken casserole, chicken broccoli bake, cheesy chicken casserole

Ingredients

• 3 cups cooked chicken, shredded or cubed (great use for leftovers, or see our Creamy Crockpot Crack Chicken)
• 4 cups fresh broccoli florets, cut into bite-sized pieces
• 4 tablespoons unsalted butter, divided
• 3 tablespoons all-purpose flour
• 1 cup low-sodium chicken broth
• 1 cup heavy cream
• 1 teaspoon garlic powder
• 1 teaspoon onion powder
• 1.5 teaspoons Diamond Crystal kosher salt
• 1/2 teaspoon freshly cracked black pepper
• 2 cups sharp cheddar cheese, freshly grated and divided
• 1 cup crushed Ritz crackers (about 1 sleeve)

Directions

1. Preheat oven to 375°F (190°C) and grease a 9x13-inch baking dish with butter.
2. Bring a large pot of salted water to a boil, drop in the broccoli florets for exactly 90 seconds to blanch, then immediately plunge them into an ice bath to stop the cooking.
3. Drain the broccoli thoroughly and pat dry with a clean kitchen towel to prevent excess moisture from watering down your sauce.
4. In a large saucepan over medium heat, melt 3 tablespoons of butter, then whisk in the flour and cook for 1 to 2 minutes until golden and fragrant.
5. Slowly pour in the chicken broth and heavy cream, whisking constantly until the sauce thickens enough to coat the back of a spoon.
6. Remove the saucepan from the heat, then stir in the garlic powder, onion powder, kosher salt, black pepper, and 1.5 cups of the shredded cheddar cheese until completely melted.
7. In a large bowl, combine the shredded chicken, blanched broccoli, and cheese sauce, folding gently until evenly coated, then transfer to the prepared baking dish.
8. Toss the crushed Ritz crackers with the remaining 1 tablespoon of melted butter and the remaining 1/2 cup of cheddar cheese, sprinkle over the casserole, and bake for 25 to 30 minutes until bubbling and golden.

Notes

• I highly recommend using Diamond Crystal kosher salt; if you only have standard table salt, cut the measurement in half (use 3/4 teaspoon instead of 1.5 teaspoons) to avoid an oversalted disaster.
• Grating your own cheese from a block is non-negotiable because pre-shredded bags are coated in potato starch, which prevents the cheese from melting into a smooth, cohesive sauce.
• Watch the Ritz cracker topping closely during the last 5 minutes of baking; those buttery crumbs transition from perfectly golden to charred black in the blink of an eye.
• After a day in the fridge, the starch matrix will tighten up, making the leftovers taste even richer, though you may need a splash of milk when reheating to loosen the sauce back up.

Serving Suggestions

Complete your cozy dinner experience by pairing this rich, cheesy bake with bright, fresh sides that balance the decadence of the scratch-made sauce.

• Pair this cozy bake with a crisp, bright side dish like our Best Broccoli Salad to cut through the rich, cheesy sauce.
• Serve it over a bed of fluffy white rice or egg noodles to soak up every last drop of the scratch-made velouté.
• Add a basket of warm, crusty bread or soft dinner rolls to mop up your plate.
• Balance the heavy casserole with a simple green salad tossed in a light lemon vinaigrette.

Storage and Reheating

Let's talk leftovers.

This casserole keeps beautifully in an airtight container in the fridge for up to four days. The flavors actually meld together overnight, making day-two lunch something you will genuinely look forward to.

To reheat, avoid the microwave if you can because it turns the cracker topping into a sad, soggy blanket.

Instead, pop the baking dish back into a 350°F oven for about fifteen minutes, tented with foil to keep the chicken from drying out, then flash it under the broiler for the last minute to crisp up those crumbs.

I do not recommend freezing this dish, as the dairy-heavy sauce tends to separate and turn grainy upon thawing.

Ingredient Substitutes

If you find yourself missing an ingredient or want to adapt this recipe to what is currently in your pantry, try these simple swaps:

1. Chicken: Leftover turkey works beautifully here, or you can use sautéed tofu cubes for a vegetarian twist.
2. Ritz Crackers: Panko breadcrumbs tossed with a pinch of garlic salt make an incredibly crispy alternative if you run out of crackers.
3. Heavy Cream: You can swap this for whole milk mixed with a tablespoon of cornstarch, though the final sauce will be slightly less decadent.
4. Sharp Cheddar: Gruyère or Swiss cheese adds a sophisticated, nutty flavor profile that elevates the entire dish.

This is the ultimate comfort food that actually tastes like real food, without any of the processed canned shortcuts. I hope it brings as much warmth to your table as it does to mine—happy baking!