Ina Garten’s Chicken Casserole – Creamy Comfort Classic

The moment the oven door cracks open, your kitchen fills with the smell of thyme, melted butter, and roasting chicken, and everyone in the house suddenly appears in the doorway. That is the quiet magic of this casserole: it looks humble and tastes like a Sunday you actually enjoyed.

You build a silky sauce on the stovetop, fold in shredded chicken and vegetables, then blanket the whole thing in buttery breadcrumbs that crisp into a golden lid. The sauce should coat the back of your spoon and the crumbs should rattle softly when you tap the dish, and that is how you know it is ready.

It is the kind of dish you can assemble ahead, slide into the oven on a busy Tuesday, and still feel like you cooked something with your whole heart in it. Taste as you go, then taste again.

About the Ingredients

2 pounds (900g) boneless, skinless chicken breasts

Poach or roast them gently so they stay tender enough to shred. A rotisserie chicken from the store works beautifully here and saves you 20 minutes.

8 tablespoons (113g) unsalted butter, divided

You will use half for the sauce and half for the crumb topping. Salted butter works too, just reduce the added salt in the sauce.

1 large yellow onion, finely diced (about 1 1/2 cups)

Yellow onion gives the sweetest, deepest base. If you only have shallots, use 4 and cook them a minute less.

3 medium carrots, peeled and diced small (about 1 cup)

Cut them to the same size as the onion so they soften evenly. Frozen diced carrots are a fine shortcut, no thawing needed.

8 ounces (225g) cremini mushrooms, sliced

Creminis bring a meaty depth that white buttons lack. Wipe them with a damp paper towel instead of rinsing so they brown rather than steam.

1/3 cup (42g) all-purpose flour

This thickens the sauce, so whisk it in and cook it for a full minute to lose the raw taste. For gluten-free, swap in an equal amount of cornstarch and simmer two minutes longer.

2 1/2 cups (600ml) whole milk

Whole milk gives the creamiest body; 2 percent works but the sauce will be thinner. Add it in a slow stream while whisking to keep it lump-free.

1 1/2 cups (360ml) low-sodium chicken broth

Low-sodium keeps you in control of the seasoning. Vegetable broth makes a fine substitute if that is what is in your pantry.

1 teaspoon fresh thyme leaves, plus more for garnish

Thyme is the flavor that makes this taste like Ina's kitchen. Dried thyme works in a pinch, use 1/2 teaspoon and rub it between your palms first.

1 1/2 cups (180g) fresh breadcrumbs or panko

Panko stays crisp the longest under the sauce. Tear stale sourdough into pieces and pulse it in a food processor for the freshest topping.

1 cup (100g) grated Parmesan, divided

Freshly grated Parmesan melts into the sauce instead of clumping. Pecorino is sharper, so use a little less if you swap it in.

Tips & Tricks

Do not skip cooking the flour

Whisk the flour into the butter and vegetables and let it bubble for a full minute before adding liquid, or the sauce will taste pasty.

Shred the chicken while warm

Warm chicken pulls apart into soft, sauce-loving strands, while cold chicken shreds into tough little chunks.

Season the sauce twice

Taste and salt the sauce before it goes into the dish, then taste again after the Parmesan goes in, since cheese brings its own salt.

Let it rest before serving

Five minutes out of the oven lets the sauce set so the first scoop holds together instead of running across the plate.

Step-by-Step Instructions

1. Heat the oven and prep

Preheat the oven to 375°F (190°C) and butter a 9×13-inch baking dish. Have all your vegetables diced and your chicken shredded before you start the sauce, because the stovetop moves fast.

2. Soften the vegetables

Melt 4 tablespoons of the butter in a large Dutch oven over medium heat, then add the onion, carrots, and mushrooms with a pinch of salt. Cook for 8 to 10 minutes, stirring occasionally, until the onions are translucent and the mushrooms squeak and release their liquid.

3. Bloom the flour and thyme

Sprinkle the flour and thyme over the vegetables and stir constantly for 1 minute, until the raw flour smell disappears and the mixture looks like a thick paste. This step is what makes the sauce silky instead of gluey.

4. Build the creamy sauce

Pour in the broth in a steady stream, whisking, then add the milk the same way. Simmer for 5 to 6 minutes, whisking, until the sauce thickens enough to coat the back of a spoon and bubbles lazily at the edges.

5. Fold in chicken and cheese

Take the pot off the heat, stir in the shredded chicken and 1/2 cup of the Parmesan, and season with salt and pepper. Taste it now, the sauce should be a touch more seasoned than you think it needs, since the topping will mellow it.

6. Fill and top the dish

Scrape everything into the buttered dish and smooth the top. Melt the remaining 4 tablespoons butter, toss it with the breadcrumbs and remaining 1/2 cup Parmesan, and scatter the crumbs evenly over the surface.

7. Bake until golden and bubbling

Bake at 375°F (190°C) for 25 to 30 minutes, until the topping is deep golden brown and the sauce bubbles visibly around the edges. If the crumbs brown too fast, tent the dish loosely with foil for the last 10 minutes.

8. Rest, garnish, and serve

Let the casserole rest for 5 minutes so the sauce settles, then scatter fresh thyme over the top. Scoop it out with a wide spoon and serve hot.

Delicious Variations

Curry and Cauliflower

Stir 1 1/2 teaspoons curry powder into the flour and swap the carrots for small cauliflower florets for a warmly spiced version.

Mushroom and Wild Rice

Replace the chicken with 3 cups cooked wild rice and add an extra 1/2 cup broth for a vegetarian bake.

Lemon and Dill

Finish the sauce with the zest of one lemon and 2 tablespoons chopped dill instead of thyme for a brighter, springlike casserole.

How to Store Ina Garten's Chicken Casserole

Frequently Asked Questions

Pull that bubbling dish out of the oven, let it breathe for five minutes, and call everyone to the table. Then tell me in the comments whether you went classic or tried the curry variation. Taste as you go, then taste again.

Ina Garten's Chicken Casserole

Ina Garten's chicken casserole is a creamy, golden-baked comfort dish with tender chicken, buttery crumbs, and a sauce that begs for bread.

★★★★½ 4.8 (214 ratings)

25 minPrep time35 minCook time6Servings412 kcalCalories

Print RecipePin Recipe

🧂 Ingredients

• 2 pounds (900g) boneless, skinless chicken breasts
• 8 tablespoons (113g) unsalted butter, divided
• 1 large yellow onion, finely diced (about 1 1/2 cups)
• 3 medium carrots, peeled and diced small (about 1 cup)
• 8 ounces (225g) cremini mushrooms, sliced
• 1/3 cup (42g) all-purpose flour
• 2 1/2 cups (600ml) whole milk
• 1 1/2 cups (360ml) low-sodium chicken broth
• 1 teaspoon fresh thyme leaves, plus more for garnish
• 1 1/2 cups (180g) fresh breadcrumbs or panko
• 1 cup (100g) grated Parmesan, divided

📋 Instructions

1. 1Heat the oven and prep — Preheat the oven to 375°F (190°C) and butter a 9×13-inch baking dish. Have all your vegetables diced and your chicken shredded before you start the sauce, because the stovetop moves fast.
2. 2Soften the vegetables — Melt 4 tablespoons of the butter in a large Dutch oven over medium heat, then add the onion, carrots, and mushrooms with a pinch of salt. Cook for 8 to 10 minutes, stirring occasionally, until the onions are translucent and the mushrooms squeak and release their liquid.
3. 3Bloom the flour and thyme — Sprinkle the flour and thyme over the vegetables and stir constantly for 1 minute, until the raw flour smell disappears and the mixture looks like a thick paste. This step is what makes the sauce silky instead of gluey.
4. 4Build the creamy sauce — Pour in the broth in a steady stream, whisking, then add the milk the same way. Simmer for 5 to 6 minutes, whisking, until the sauce thickens enough to coat the back of a spoon and bubbles lazily at the edges.
5. 5Fold in chicken and cheese — Take the pot off the heat, stir in the shredded chicken and 1/2 cup of the Parmesan, and season with salt and pepper. Taste it now, the sauce should be a touch more seasoned than you think it needs, since the topping will mellow it.
6. 6Fill and top the dish — Scrape everything into the buttered dish and smooth the top. Melt the remaining 4 tablespoons butter, toss it with the breadcrumbs and remaining 1/2 cup Parmesan, and scatter the crumbs evenly over the surface.
7. 7Bake until golden and bubbling — Bake at 375°F (190°C) for 25 to 30 minutes, until the topping is deep golden brown and the sauce bubbles visibly around the edges. If the crumbs brown too fast, tent the dish loosely with foil for the last 10 minutes.
8. 8Rest, garnish, and serve — Let the casserole rest for 5 minutes so the sauce settles, then scatter fresh thyme over the top. Scoop it out with a wide spoon and serve hot.

👨‍🍳 Chef's Note: If you want the topping extra crunchy, broil the finished casserole for 60 to 90 seconds at the very end, watching it the whole time. Taste as you go, then taste again.

Servings: 6

Cuisine: American

Course: Main Course

Nutrition (per serving): 412 kcal · 31g protein · 24g carbs · 22g fat

Written by Priya Raghunathan

Priya writes about South Indian home cooking and the improvisation that happens in real kitchens, from quick weekday tiffins to slow weekend spreads. She is interested in how a single tempering of spices changes a dish and in adapting familiar recipes to what a cook has on hand. Her angle is playful, sensory recipe writing that treats cooking as something to tinker with.