Gluten Free Chicken Pot Pie Casserole
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This is the best gluten free chicken pot pie casserole for family dinners! My easy, from-scratch recipe uses a delicious homemade crust and simple filling.

When I first went gluten-free, there were so many things I missed! I’ve replaced most of them with new favorites, so I decided it was time to make a gluten-free chicken pot pie casserole.
This recipe has all of the yummy flavors that we grew up with, only without the gluten ingredients that so many of us have to avoid now. You won’t even know the difference.
If you’ve been searching for the best gluten-free chicken pot pie casserole, here is the recipe – be sure to save it for later because you’ll want to make it again and again!
Ingredients
Filling Ingredients
- 1 chopped onion
- 24 ounces of frozen mixed vegetables
- 4 cups of cooked and shredded chicken
- 3 cups of chicken stock
- ½ teaspoon of garlic powder
- ¼ teaspoon of onion powder
- 1 teaspoon of seasoned salt
- 1 teaspoon of dried thyme
- 1 ½ cups of whole milk
- 6 tablespoons cornstarch – or alternative thickeners
- Sea salt, to taste
- Black pepper, to taste
Crust Ingredients
- 1 ½ cups of gluten-free baking mix
- 1 cup of whole milk
- 2 eggs
- 4 tablespoons of melted butter
- Fresh parsley
Step-by-Step: How to Make a Gluten Free Chicken Pot Pie
Follow these simple steps to learn how to make a delicious gluten free chicken pot casserole the whole family will love.
Step 1: Sauté Onion
Before you begin, preheat your oven to 350° F. While the oven is preheating, add a tablespoon of oil or butter and one chopped onion to a 4-quart saucepan, then cook until translucent.

Step 2: Cook Chicken & Veggies
Stir in 24 ounces of frozen vegetables, 4 cups of pre-cooked chicken, 3 cups of chicken stock, ½ teaspoon of garlic powder, ¼ teaspoon of onion powder, 1 teaspoon of seasoned salt and 1 teaspoon of dried thyme. Turn up the heat to allow the mixture to come to a boil.

Step 3: Make Cornstarch Slurry
In a small bowl, add 1 ½ cups of milk and 6 tablespoons of cornstarch, then mix until smooth.

Step 4: Stir Slurry Into Pot
Stir into the pot pie mixture on the stove. Continue boiling until the liquid has thickened. Taste and adjust seasoning, if needed.

Step 5: Transfer to Casserole Pan
Remove the pan from the heat and pour the chicken pot pie contents into an ungreased 9 x 13” casserole dish.

Step 6: Make Crust
In a separate bowl, add 1 ½ cups of gluten-free baking mix, 1 cup of whole milk, 2 eggs and 4 tablespoons of melted butter then mix well.

Step 7: Spread Topping onto Casserole
Spoon the topping you just made over the chicken mixture int the casserole pan and smooth out to cover the surface.

Step 8: Bake and Serve Casserole
Bake your gluten-free chicken pot pie casserole for 25-30 minutes or until a toothpick inserted into the center of the casserole comes out clean. Sprinkle with fresh parsley as garnish, if desired, and serve while hot.
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Tips for Making this Gluten-Free Chicken Pot Pie Casserole
Answers to all of your questions about making this recipe, including tips, substitutions and variations.
What baking mix to use?
I most often use gluten-free Bisquick, but you can also use your favorite mix. The texture of the crust will vary depending upon which blend you choose. If you have a favorite pie crust recipe, you can also use that (but omit the sugar).
Can I use fresh vegetables instead of frozen?
Yes, you can use fresh vegetables instead of frozen. You’ll need about 4-5 cups of fresh vegetables, diced into small, bite-sized pieces.
Can I substitute the cornstarch with another thickener?
Yes, you can use cornstarch alternatives like arrowroot powder, tapioca starch or gluten-free flour (in equal amounts. Adjust the amount based on the desired thickness.
How can I make this dairy-free?
You can substitute the whole milk with a dairy-free alternative like almond milk, oat milk or coconut milk. For the butter, use a dairy-free margarine or oil.
Can I use a different type of meat, like turkey or beef, instead of chicken?
Absolutely! You can substitute the chicken with cooked and shredded turkey, beef, or even pork. The cooking process remains the same.
How do I ensure the crust turns out crispy and not soggy?
To achieve a crispy crust, make sure the filling is thickened properly before adding the topping. Also, avoid overloading the crust with too much liquid from the filling, and bake until the crust is golden brown.
What can I use instead of seasoned salt?
You can use a mix of regular salt with additional herbs and spices like paprika, garlic powder, and onion powder to mimic the flavor of seasoned salt.
Can I make this recipe ahead of time and bake it later?
Yes, you can prepare the filling and topping separately and store them in the refrigerator for up to 24 hours. Assemble just before baking. If you assemble it ahead of time, the topping might absorb some of the filling moisture, so it’s best to keep them separate until ready to bake.
Would it be okay to add cheese to the filling or the crust?
Yes, adding cheese can enhance the flavor. You can mix shredded cheese into the filling or sprinkle it on top of the crust before baking. Adjust the salt if adding cheese, as it can be salty.
Can I use a different size or shape of the casserole dish? Will it affect the cooking time?
You can use a different size or shape of casserole dish, but the thickness of the filling will affect the cooking time. A deeper dish might require a longer baking time, while a shallower dish may cook faster. Keep an eye on it and test the crust for doneness with a toothpick.
What can I do if my filling doesn’t thicken as expected?
If your filling doesn’t thicken, you can mix an additional tablespoon of cornstarch or your chosen thickener with a bit of cold water or milk and stir it into the filling while it’s still on the stove. Allow it to cook for a few more minutes until it thickens.
What sides would go well with this dish?
This dish pairs well with a fresh green salad, roasted vegetables or a light coleslaw. For a heartier meal, serve it with baked potatoes, mashed potatoes or garlic bread (with gluten free bread).
How should I store leftovers, and how long will they keep?
Store leftovers in an airtight container in the refrigerator for up to 3-4 days. Reheat in the oven or microwave until warmed through.
Making chicken stock
While you can use store-bought chicken stock (Costco has a great price on organic chicken stock), there is nothing like homemade! You can make your own chicken stock on the stovetop, in a slow cooker or in an Instant Pot.
More cooked chicken recipes
I like using a rotisserie chicken to make this recipe quickly. Here are some other easy recipes you can make using the same chicken:

Gluten Free Chicken Pot Pie Casserole Recipe
Ingredients
Filling Ingredients
- 1 onion - chopped
- 24 ounces frozen mixed vegetables
- 4 cups chicken - cooked and shredded
- 3 cups chicken stock
- ½ teaspoon garlic powder
- ¼ teaspoon onion powder
- 1 teaspoon seasoned salt
- 1 teaspoon dried thyme
- 1.5 cups whole milk
- 6 tablespoons cornstarch - or alternative thickeners
- Sea salt - to taste
- Black pepper - to taste
Crust Ingredients
- 1 ½ cups gluten free all purpose flour
- 1 cup whole milk
- 2 eggs
- 4 tablespoons butter - melted
- Fresh parsley - for garnish
Equipment
- 4-quart saucepan
- Mixing bowl
- Mixing spoon
- Casserole pan
Instructions
- Preheat oven to 350° F.
- In a 4 quart saucepan, add a tablespoon of oil or butter and the chopped onion, then cook until translucent.

- Stir in frozen vegetables, chicken, chicken stock and spices. Turn up heat to allow the mixture to come to a boil.

- In a small bowl, add the milk and cornstarch, then mix until smooth.

- Stir into the pot pie mixture on the stove. Continue boiling until the liquid has thickened. Taste and adjust seasoning, if needed.

- Remove the pan from the heat and pour the chicken pot pie contents into an ungreased 9 x 13” casserole dish.

- In a separate bowl, add topping ingredients and mix well.

- Spoon topping over the chicken mixture and smooth out to cover the surface.

- Bake your gluten free chicken pot pie casserole for 25-30 minutes or until a toothpick inserted into the center of the casserole comes out clean. Sprinkle with fresh parsley as garnish, if desired, and serve while hot.




I made this recipe for my family last night and it was a huge hit! I’m hoping to make a double recipe and send one pan over to my sister’s family. How long does this stay good in the fridge/freezer? Thanks!
Hi Alana, I’m so glad your family loves the chicken pot pie! I will usually only keep leftovers in the fridge for about 3 days and I don’t typically freeze casseroles for longer than 2 months. I hope that helps!
Hi there !
Want to try this recipe this evening for family dinner. Do you know if it’s possible to use a dairy free milk for filling and crust ?
I use almond milk more often than whole milk for cooking these days.
I followed the recipe but my batter for the “pie” topping came out so so thin, like liquid soup. I added more flour but it still wouldn’t thicken. I’m
Not sure why this happened.
What type of flour were you using?
This looks so good! Do you use this crust for any other recipes?
I’ve only used this crust on this chicken pot pie recipe. If you try it on something different, let me know how you like it! 🙂
Thanks for sharing! Does it keep long?
I wouldn’t store the leftovers for more than a couple days in the fridge.
What gluten free flour do you recommend? I used Bob’s mill and it didn’t raise and was doughy and flat
Bob’s Red Mill gluten free flour is great for things like cookies and cornbread, but not baked goods that need to rise or puff up. For baking things like breads and muffins, I most often use Cup4Cup.
I’ve made this a couple times and really enjoy it! Do you think I could make the “crust” on a cookie sheet separately to get it extra crispy. When I make it on top as a casserole I notice the underside stays very moist because of the filling
I’m glad you like the chicken pot pie Emily! I haven’t tried doing that. If you do, will you let me know how it turns out?
Just made this!! I made it dairy free by using almond milk and coconut milk, added paprika and cumin, and used 1:1 gf flour. My veggies are broccoli, carrots and celery (all I had in my fridge). A crust formed but it’s not like a pie crust, but that’s okay, it tastes good and will slightly tweak it next time! Thanks!
What are the “topping” ingre? The crust? I don’t see a separate Topping ingre list.
Thanks
Yes, the crust is the “topping” – it doesn’t have a bottom crust.
I made this a few times and the crust did not set up after double the amount of time in the oven and was doughy underneath. I cranked the heat to 450 and it was crispy and cooked all the way through. My whole family loved it. Just might want to adjust the cook temp!