Chicken Pot Pie Casserole
Recipe Tested & Approved by Mia Hartwell
Every recipe is developed, cooked, and tested by Mia in a real home kitchen using everyday ingredients to ensure reliable, repeatable results.
All the comfort of chicken pot pie in an easy casserole form, with a creamy chicken-and-vegetable filling under a golden biscuit topping. Pure cozy, crowd-pleasing comfort food.
By Mia HartwellUpdated February 15, 2026
Developed using tested cooking methods — cook to the temperatures given and adjust times to your equipment.
Why you'll love this recipe
- All the comfort of pot pie with way less fuss
- A creamy from-scratch filling under flaky biscuits
- A perfect use for leftover or rotisserie chicken
- Feeds six and reheats well
Chicken Pot Pie Casserole
55 min totalServes 6
Nutrition (per serving)
Values are estimates. See our disclaimer for details.
- Calories
- 540kcal
- Protein
- 30g
- Carbs
- 44g
- Fat
- 27g
- Fiber
- 4g
- Sugar
- 6g
Step-by-Step Instructions
- 1
Preheat the oven to 400°F (205°C). Melt the butter in a large oven-safe skillet or pot over medium heat.
- 2
Add the onion, carrots, and celery and cook 6-7 minutes until softened, then add the garlic for 1 minute.
- 3
Sprinkle in the flour and stir for 1-2 minutes to cook out the raw taste.
- 4
Gradually whisk in the broth and milk, stirring until the sauce thickens, about 3-4 minutes.
- 5
Stir in the chicken, peas, thyme, salt, and pepper. Simmer 2 minutes, then transfer to a baking dish if not using an oven-safe pan.
- 6
Arrange the biscuits over the top and bake 20-25 minutes until the biscuits are golden and cooked through and the filling is bubbling.
- 7
Cool 5-10 minutes so the filling sets before serving.
Pro Tips for the Best Results
- Cook the flour for a minute or two before adding liquid so the sauce doesn't taste pasty.
- Add the broth gradually while whisking to keep the sauce lump-free.
- Use rotisserie or leftover chicken to make this come together fast.
- Let it rest before serving so the filling thickens enough to scoop neatly.
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How to Cook Chicken Pot Pie Casserole
New to this dish? Follow along with the detailed guide below — we break down each stage so you get perfect results the very first time.
Build a proper roux-based sauce
The creamy filling starts with a roux — flour cooked in butter. Letting the flour cook for a minute or two before adding liquid removes its raw, pasty taste, and whisking in the broth and milk gradually keeps the sauce silky and lump-free. This homemade base is what sets the dish above canned-soup shortcuts.
Load up the filling
Soften the carrots, celery, and onion first so they're tender in the final bake, then fold in the cooked chicken, peas, and thyme. Using already-cooked chicken — rotisserie is perfect — means the filling just needs to come together rather than cook from raw, keeping the whole dish quick.
Top, bake, and rest
Arrange biscuits over the hot filling so their bottoms start cooking immediately, then bake until they're puffed and golden and the filling bubbles up around the edges. A short rest is important — it lets the sauce thicken so each serving holds together instead of running across the plate.
Storage & Make-Ahead
Refrigerate leftovers in an airtight container for up to 4 days. Reheat in the oven so the biscuit topping crisps back up. The filling (without biscuits) freezes well for up to 2 months.
Serving Suggestions
This chicken pot pie casserole pairs beautifully with a crisp green salad, crusty bread, or your favorite grain. Add a simple side of roasted vegetables for a complete, satisfying dinner the whole family will enjoy.
Frequently Asked Questions
Can I use a pie crust instead of biscuits?+
Yes. Top the filling with a sheet of puff pastry or pie crust, cut a few vents, and bake until golden, about 25-30 minutes.
Can I make it ahead?+
Prepare the filling and refrigerate up to 2 days. Add the biscuits and bake fresh, adding a few minutes since the filling starts cold.
What vegetables can I add?+
Corn, green beans, mushrooms, or diced potatoes all work well in the creamy filling.
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