This old-fashioned scalloped chicken casserole features tender chicken in a rich, herbed cheese sauce topped with buttery, golden Ritz cracker crumbs.
- Emulsion Stability: The combination of mayonnaise and sour cream creates a heat-stable binder that won't curdle or break into a greasy pool like traditional flour-thickened sauces.
- Textural Contrast: Finely diced celery retains its structural integrity during the short bake, offering a clean, refreshing crunch against the tender chicken and melted cheese.
- Moisture Barrier: Tossing the crushed crackers in melted butter before baking coats the starches, slowing down steam absorption and keeping the topping incredibly crispy.
I remember sitting at my grandmother's laminate kitchen table, listening to the rhythmic thwack of her heavy wooden spoon hitting the side of a yellow Pyrex bowl as she mixed what she called "hot chicken salad." She would scrape every last bit of the creamy mixture into a worn baking dish, her forearms tensed, before showering the top with a handful of crushed crackers she'd smashed right in the sleeve.
It was magic.
This modern update bypasses the gloppy, sodium-heavy canned soups of yesteryear, relying instead on a balanced fat-and-acid emulsion of mayonnaise and sour cream. When baked, this combination forms a rich, velvety binder that clings to the chicken without separating into a greasy puddle, thanks to the stabilizing proteins in the egg yolk and dairy.
Like our comforting Chicken & Stuffing Casserole, this quick bake will easily earn a spot in your weekly rotation.
A common pitfall is over-crushing the cracker topping into a fine dust, which absorbs the steam from the casserole and turns into paste. Keep those cracker pieces chunky—aim for pea-sized fragments—so they retain their crispness and create a beautifully textured golden crust under the oven's heat.
Crushing crackers in a bag can get annoying fast, but the buttery payoff is hands down worth it.
Scalloped Chicken Casserole
Ingredients
- 4 cups cooked, cubed chicken
- 1 cup finely diced celery
- 8 ounces Colby jack or cheddar cheese, shredded
- 1/2 cup mayonnaise
- 1/2 cup sour cream
- 1 teaspoon dried thyme
- 1 teaspoon Diamond Crystal kosher salt (see notes for conversion)
- 1/2 teaspoon black pepper
- 1/2 teaspoon garlic powder
- 1/2 teaspoon onion powder
- 30 Ritz crackers, crushed
- 2 tablespoons butter, melted
Directions
- Preheat your oven to 375°F (190°C).
- In a spacious mixing bowl, whisk together the mayonnaise, sour cream, dried thyme, kosher salt, black pepper, garlic powder, and onion powder until the dressing is completely smooth and uniform.
- Fold the cubed chicken, diced celery, and shredded Colby jack cheese into the bowl, using a sturdy spatula to ensure every piece is thoroughly coated in the seasoned dressing.
- Lightly coat a 1-quart baking dish with nonstick cooking spray, then transfer the chicken mixture into the dish, smoothing the top with the back of your spoon.
- In a separate small bowl, toss the crushed cracker crumbs with the melted butter until the crumbs are evenly moistened, then scatter them in a uniform layer over the chicken.
- Bake at 375°F for 30 minutes, or until the edges are vigorously bubbling and the buttery cracker topping has turned a deep, golden brown.
Notes
Keep these essential tips in mind to ensure your casserole turns out perfectly every single time:
- Salt Conversion: This recipe specifies Diamond Crystal kosher salt. If you are using standard table salt or fine sea salt, use only 1/2 teaspoon, as the smaller crystals pack more tightly and can easily make the dish too salty.
- Freshly Shredded Cheese: Avoid pre-packaged shredded cheese. Block cheese shredded at home melts into a much smoother, creamier sauce because it lacks the powdery cellulose anti-caking agents found in bagged varieties.
- Prevent Burning: Keep a close eye on the oven during the final 10 minutes of baking. The sugar and butter in Ritz crackers can transition from beautifully toasted to scorched very quickly.
- Prep-Ahead Strategy: If you want to assemble this dish a few hours in advance, mix the filling and spread it into the baking dish, but do not add the cracker topping until right before you slide it into the oven to prevent the crumbs from absorbing moisture and turning soggy.
- Acid Balance: For an extra pop of brightness, add a tiny splash of fresh lemon juice to the mayonnaise mixture to cut through the richness of the cheese.
Serving Suggestions
Because this bake is incredibly rich and comforting, pairing it with the right side dishes can elevate the entire meal.
- Spoon this rich bake over a bed of tender Hot Buttered Noodles to soak up every drop of the savory cream sauce.
- Pair it with a side of smoky Southern Cooked Cabbage to balance the creamy texture with a sweet, caramelized crunch.
- Serve alongside steamed broccoli florets tossed in lemon zest to cut through the heavy Colby jack cheese.
- Scoop it up with crisp celery sticks or thick potato chips for a fun, dip-style dinner.
- Balance the meal with a bright, acidic green salad tossed in a sharp vinaigrette.
Storage and Reheating
Let the casserole cool completely to room temperature before covering. Transfer any leftovers to an airtight container and store in the refrigerator for up to three days.
Keep in mind that the cracker topping will inevitably lose its signature crunch after 24 hours in the fridge as it absorbs moisture from the sauce below.
To reheat, avoid the microwave if you want to salvage the texture. Instead, place the leftovers in an oven-safe dish, cover loosely with foil to prevent drying, and warm at 350°F for 15 minutes before removing the foil for the last 5 minutes to crisp up the top.
Freezing is not recommended for this dish, as the mayonnaise and sour cream emulsion will break upon thawing, resulting in a watery, separated sauce.
Ingredient Substitutes
If you find yourself missing an ingredient, these easy swaps will keep your dinner on track without sacrificing flavor:
- Colby Jack Cheese: Swap in sharp white cheddar at a 1:1 ratio. No technique tweak is needed, though it will yield a slightly sharper, more assertive flavor profile.
- Sour Cream: Use plain Greek yogurt at a 1:1 ratio. Tweak: Whisk the yogurt thoroughly before adding to ensure it incorporates smoothly without graininess.
- Ritz Crackers: Substitute with Panko breadcrumbs at a 1:1 ratio by volume. Tweak: Add an extra tablespoon of melted butter to the panko to ensure they brown evenly.
- Celery: Use finely diced water chestnuts at a 1:1 ratio. Tweak: Drain and pat the water chestnuts completely dry with a paper towel before folding them in to avoid excess water in the bake.
- Cooked Chicken: Swap in leftover roasted turkey at a 1:1 ratio. No technique tweak required; it is a perfect way to use up holiday leftovers.
This comforting bake has a way of making the simplest ingredients feel like a celebration. Pull it out on a busy weeknight, watch the steam rise as you scoop up the first serving, and enjoy a truly effortless dinner.
