Canned Chicken Casserole Recipe: One-Pan Creamy Celery Crown Magic

This award-winning canned chicken casserole recipe turns simple pantry staples into a creamy, golden-topped masterpiece that fills your kitchen with warmth the second it leaves the oven.

After years of testing variations, I’ve perfected a method that delivers tender chicken, velvety sauce, and crispy celery crowns—all in one pan with minimal effort. The secret lies in layering flavors through slow baking, ensuring every bite is rich yet balanced.

What sets this recipe apart is its simplicity without sacrificing depth. You’ll combine canned chicken, a creamy sauce base, and fresh celery for texture, then top it with a golden breadcrumb crust that becomes irresistibly crispy.

The result is a dish that’s hearty enough for a family dinner but effortless enough for a weeknight—no fancy techniques required, just precise timing and patience.

The magic happens in the oven, where the celery crowns caramelize into tender, slightly crispy bites while the sauce thickens into a luxurious, creamy blanket over the chicken.

This isn’t just a casserole; it’s a restaurant-quality comfort food that pairs perfectly with steamed green beans or a simple side salad for a complete meal.

Whether you’re feeding a crowd or meal prepping for the week, this recipe delivers consistent, foolproof results. Let’s get started—your taste buds (and leftovers) will thank you.

Ingredients for canned chicken casserole

Pantry staples meet restaurant magic in this creamy, golden-topped casserole.

The celery crowns are the star here—thick slices caramelize beautifully while baking. I always grab the baby celery from the produce section (not the pre-sliced kind)—it holds up better to baking. For the canned chicken, chicken breast is ideal, but chicken with broth works too if you're stretching the recipe. The flour topping needs to be dry—don’t skip the baking step, or it’ll be soggy (trust me on this).

Mayonnaise is what makes this creamy without adding dairy—duke’s or Hellmann’s are my go-tos, but any quality mayo works. Short on celery? Carrots or green onions can replace half the stalks. Want extra richness? Add 1/2 cup sour cream to the sauce mix. The Parmesan? Grate it yourself—pre-shredded loses its punch. And if you’re in a pinch, Pecorino Romano adds a salty kick.

This casserole tastes even better the next day—reheats beautifully with a quick microwave zap or oven refresh. Store leftovers in airtight containers for up to 5 days. For meal prep, portion it into single-serving containers so lunches are sorted. The celery crowns crisp up again after reheating, which is honestly the best part. Freezes for 3 months—just thaw overnight in the fridge before reheating.

Step-by-step instructions for creamy celery crown casserole

This one-pan wonder delivers velvety richness and crispy celery crowns—no fancy skills required.

First, trim the bottoms of all 6 whole celery stalks to create flat surfaces. Using a sharp knife, slice each stalk into ½-inch thick rounds—you should get about 12-15 slices total. Set aside half for the topping and keep the rest for the filling.

In a large mixing bowl, combine the 2 cans drained canned chicken breast, ½ cup mayonnaise, 1 cup milk, 1 teaspoon garlic powder, 1 teaspoon onion powder, 1 teaspoon salt, and ½ teaspoon black pepper. Stir until fully blended. The mixture should be thick but pourable—this is your creamy foundation. Here's the thing—don't skip mixing well, or you'll end up with uneven texture in your casserole.

Preheat your oven to 375°F while you prepare the next components. Grease a 9x13-inch baking dish with ½ cup melted butter—this prevents sticking and adds extra richness. Spread half of the chicken mixture evenly across the bottom of the dish.

Arrange the reserved celery slices in a single layer over the chicken mixture, slightly overlapping them like shingles. This creates those signature celery crowns that crisp up beautifully. Pour the remaining chicken mixture over the celery, then sprinkle ½ cup grated parmesan cheese evenly across the top. The parmesan will melt into a golden, flavorful blanket during baking.

In a medium bowl, whisk together 1½ cups all-purpose flour, 1 teaspoon salt, ½ teaspoon black pepper, 1 teaspoon garlic powder, and 1 teaspoon onion powder. This seasoned flour mixture will create the signature crispy topping. Sprinkle it evenly over the entire surface of the casserole, pressing down gently with your fingers to help it adhere.

Here's where it gets fun—use a fork to create a crisscross pattern in the flour topping. This not only looks beautiful but also helps the crust brown more evenly. For extra flair, sprinkle the ¼ cup chopped celery leaves over the top just before baking. These will add a fresh, herbal note that balances the richness.

Place the prepared casserole in the preheated 375°F oven and bake uncovered for 35-40 minutes. You'll know it's ready when the top is deep golden brown and the celery crowns are crispy enough to stand up on their own. The edges should pull away slightly from the baking dish when gently tugged.

Remove from the oven and let the casserole rest for 10 minutes before serving. This resting time allows the creamy filling to set slightly, making it easier to slice and serve. The contrast between the crispy celery crowns and the velvety chicken mixture is what makes this dish truly special. Serve warm with a side of steamed vegetables or crusty bread to soak up every last creamy bite.

Health benefits of canned chicken casserole

Lean Protein Powerhouse

This casserole delivers 24 grams of protein per serving thanks to the canned chicken breast, making it an excellent choice for muscle maintenance and satiety. The combination of chicken and dairy-free mayo creates a balanced macronutrient profile that keeps you full for hours without the heaviness of traditional casseroles. 💪

Rich in B Vitamins

The garlic powder and onion powder in this recipe provide B vitamins that support energy metabolism and brain function. These compounds also contribute to the savory depth that makes every bite satisfying. I notice my energy levels stay steadier when I include this dish in my weekly meals.

Low-Calorie Comfort

At just under 350 calories per serving, this casserole offers all the comforting flavors without the guilt. The full-fat milk and mayo add richness, but the high protein content helps maintain stable blood sugar levels. It's perfect for those watching their calorie intake but still craving something hearty.

Bone Health Boost

The ½ cup of Parmesan cheese provides 20% of your daily calcium needs, supporting strong bones and teeth. Calcium also plays a crucial role in muscle function, making this dish particularly beneficial for active individuals or those recovering from injuries. The cheese also adds that perfect umami finish!

Hydration Support

With 1 cup of milk in the recipe, you're getting natural hydration along with essential nutrients like calcium and vitamin D. The milk also contributes to the creamy texture that makes this casserole so satisfying.

For a lighter option, you could substitute with unsweetened almond milk while keeping the same creamy consistency.

Frequently asked questions