This easy Poppyseed Chicken Casserole is creamy, comforting, and topped with buttery, crispy crackers for the perfect weeknight dinner. Made with shredded chicken, Greek yogurt, a simple homemade cream sauce, and plenty of poppy seeds, it’s one of those cozy casseroles the whole family can dig into. And if you want to make dinner even easier, grab a rotisserie chicken and skip cooking the chicken altogether.
why you’ll love this poppyseed chicken casserole
I feel like everyone needs a few really good casserole recipes in their back pocket, and this Poppyseed Chicken Casserole is exactly that. It’s warm, creamy, filling, and has that buttery cracker topping that might honestly be my favorite part.
Instead of using canned cream soup, I make a really simple homemade cream sauce with butter, flour, chicken broth, and milk. It only takes a few extra minutes, and then everything gets mixed with Greek yogurt, shredded chicken, and poppy seeds before going into the baking dish.
And this is definitely a recipe where you can take a shortcut when you need one. If you don’t already have cooked chicken on hand, rotisserie chicken works perfectly. Just shred it up, measure out about 3-4 cups, and you’re ready to go. It makes this Poppyseed Chicken Casserole especially easy for busy weeknights.
The whole thing gets topped with crushed buttery crackers tossed in melted butter and more poppy seeds, then baked until bubbly and golden. Serve it with a simple veggie or salad, and dinner is done.
ingredients you’ll need for poppyseed chicken casserole
- Butter: You’ll use butter in both the homemade cream sauce and the cracker topping. It adds richness to the filling and helps the crackers get perfectly golden and crispy.
- All-purpose flour: Combines with the butter to create a simple roux, which thickens the creamy sauce.
- Milk: Helps create the creamy base of the casserole. I typically use regular dairy milk, but you can use what you have on hand.
- Chicken broth: Adds more flavor to the homemade cream sauce than using milk alone. Chicken bone broth works here too and adds more protein.
- Onion powder: An easy way to add savory onion flavor without having to chop and sauté another ingredient.
- Shredded chicken: You’ll need about 4 cups of cooked, shredded chicken. You can cook and shred your own chicken or use leftover chicken. Rotisserie chicken is also a great shortcut and makes this recipe even easier.
- Greek yogurt: Adds creaminess and a slight tang to the filling. It also gives the casserole a little extra protein.
- Poppy seeds: Mixed into both the creamy chicken filling and buttery cracker topping for that classic poppy seed chicken flavor.
- Salt and pepper: Simple seasonings are really all you need here. If you’re using rotisserie chicken or a saltier broth, you may want to start with less salt and adjust to taste.
- Butter crackers: Crushed buttery crackers create that crispy, salty topping that makes this casserole SO good. Crush them into coarse crumbs rather than a fine powder so you still get plenty of texture.
step-by-step
Make the cream sauce
Preheat the oven to 350°F and lightly grease an 8×11-inch baking dish. Melt 6 tablespoons of butter in a medium saucepan over medium heat. Add the flour and whisk until a thick, smooth paste forms. Continue cooking and whisking for about 2 minutes to cook out the raw flour taste.
Add the broth and milk
Slowly pour in the chicken broth and milk, whisking continuously to keep the sauce smooth. Add the onion powder and continue cooking for about 3–5 minutes, stirring often, until the sauce has thickened. Remove from the heat.
Make the chicken filling
In a large bowl, combine the shredded chicken, Greek yogurt, cream sauce, 2 teaspoons poppyseeds, salt, and pepper. Stir until everything is well combined and the chicken is completely coated in the creamy sauce.
Assemble the casserole
Spread the chicken mixture evenly into the prepared baking dish.
Make the buttery cracker topping
Place the butter crackers in a large zip-top bag, press out the air, and seal. Use your hands or a rolling pin to crush the crackers into fine pieces. Pour the melted butter and remaining 1 teaspoon poppyseeds directly into the bag, reseal, and gently shake and mix until the cracker crumbs are evenly coated. Sprinkle the mixture evenly over the chicken.
Bake
Bake the Poppyseed Chicken Casserole uncovered for 20–25 minutes, or until the filling is hot and bubbly around the edges and the cracker topping is lightly golden.
Serve.
Let the casserole rest for about 5 minutes before serving. Garnish with fresh parsley, if desired, and dig in!
You can watch a full video tutorial of my Poppyseed Chicken Casserole here.
pro tips
- Use rotisserie chicken to save time. This is probably my favorite shortcut for this recipe. Grab a cooked rotisserie chicken, shred the meat, and measure out about 3-4 cups. It turns this into a really quick prep dinner.
- Slowly add the liquid to your roux. Pour the broth and milk in gradually while whisking. This helps create a smooth, creamy sauce without lumps.
- Don’t crush the crackers too finely. Leave some slightly larger pieces so you get plenty of texture and crunch on top.
- Watch the salt if you’re using rotisserie chicken. Rotisserie chicken, broth, and butter crackers can all contain quite a bit of sodium. You can always add more salt at the end, so start conservatively if needed.
- Don’t overbake it. Everything in the casserole is already cooked before it goes into the oven. You’re really just heating it through and getting that cracker topping golden and crispy.
how to get 3 cups of shredded chicken: You have a few easy options! Rotisserie chicken is the quickest shortcut, but you can easily cook your own. You’ll need about 1 pound of boneless, skinless chicken breasts to get roughly 3 cups shredded.
- Skillet method: Lightly season the chicken breasts with salt and pepper. Heat a little oil in a skillet over medium heat, add the chicken, and cook until golden on both sides and the internal temperature reaches 165°F. Let cool slightly, then shred using two forks.
- Boil method: Add the chicken breasts to a pot and cover with water. Bring to a boil, then cook for about 10–12 minutes, or until the thickest part of the chicken reaches 165°F. Remove from the water, let cool slightly, then shred.
variations & substitutions
- Swap the broth: Regular chicken broth works perfectly, but I love using chicken bone broth when I have it on hand. It gives the casserole a little richer flavor while also adding some extra protein. Just keep an eye on the sodium and adjust the added salt as needed.
- Add vegetables: Want to sneak in some extra veggies? Broccoli, cauliflower, peas, or spinach would all be great additions. Whatever you use, I recommend finely chopping the vegetables so they blend nicely into the creamy chicken filling rather than leaving you with large chunks. For broccoli or cauliflower especially, chop them into very small pieces before adding.
- Change the topping: Buttery round crackers give this casserole that classic crispy, buttery topping, but you have options! Try crushed cornflakes for extra crunch or cheddar crackers for a cheesy twist. Toss either with the melted butter just like you would the butter crackers.
what to serve with Poppyseed Chicken Casserole
Because Poppyseed Chicken Casserole is rich and creamy, I like keeping the sides pretty simple. Roasted broccoli, green beans, asparagus, or a simple green salad are all great options.
You can also serve it over rice if you want to stretch the casserole a little further or make the meal extra filling.
FAQ’s
Can I use rotisserie chicken?
Absolutely! Rotisserie chicken is one of the easiest ways to make this Poppy Seed Chicken Casserole. Simply remove the skin, shred the chicken, and use about 4 cups. Since rotisserie chicken can already be well seasoned, taste your filling before adding any additional salt.
Can I use leftover chicken?
Yes. Any simply seasoned cooked chicken works well. This is actually a great way to turn leftover chicken into an entirely different dinner.
Can I make Poppyseed Chicken Casserole ahead of time?
Yes. Prepare the creamy chicken mixture and place it in the baking dish, then cover and refrigerate. I recommend waiting to add the buttery cracker topping until you’re ready to bake so it stays nice and crispy.
Can I add vegetables?
Absolutely! Finely chopped or grated raw broccoli or cauliflower works really well because the small pieces will cook right into the casserole as it bakes. You could also add peas or finely chopped spinach. Whatever you choose, keep the pieces small so they blend into the creamy chicken filling rather than leaving you with large chunks of vegetables.
Can I use sour cream instead of Greek yogurt?
Yes. Plain Greek yogurt keeps the filling creamy while adding some extra protein, but sour cream can be substituted if that’s what you have.
Why is my cream sauce lumpy?
Make sure you cook the butter and flour together first, then slowly add the broth and milk while whisking continuously. Adding all the liquid at once can make it harder to get a completely smooth sauce.
Can I freeze Poppy Seed Chicken Casserole?
You can freeze the creamy chicken filling, but I would leave off the cracker topping until you’re ready to bake. The crackers can lose their crunch after freezing and thawing.
storage & reheating
Store leftover casserole in an airtight container in the refrigerator for up to 3–4 days. Reheat individual servings in the microwave until warmed through. For a larger portion, cover the baking dish loosely with foil and warm it in a 325°F oven until heated through. Removing the foil for the last few minutes can help crisp the cracker topping back up.
more recipes to try and LOVE!
Green Chile Chicken Cornbread Skillet
If you make this Poppyseed Chicken Casserole I’d love to hear what you think! Leave a comment and rating below, and if you share it on Instagram, tag @forgetthetakeout so I can see. Your support—through reviews, comments, and shares—helps me keep creating and sharing recipes!
Poppyseed Chicken Casserole
Equipment
- 1 baking dish 7 x 11"
- saucepan
- whisk
- large mixing bowl
- measuring spoons
Ingredients
- 6 tablespoons butter
- 6 tablespoons all-purpose flour
- 1 cup milk of choice
- 1 cup chicken broth
- 2 teaspoons onion powder
- 3 cups cooked shredded chicken or shredded rotisserie chicken
- 1 cup plain Greek yogurt
- 2 teaspoons poppy seeds
- 1 teaspoon salt
- 1 teaspoon black pepper
For the topping:
- 2 sleeves butter crackers
- 1/2 cup butter melted
- 1 teaspoon poppy seeds
Instructions
- Preheat the oven to 350°F. Lightly grease an 8×11-inch baking dish.
- Melt 6 tablespoons butter in a medium saucepan over medium heat. Add the flour and whisk until a thick, smooth paste forms. Continue whisking for about 2 minutes.
- Slowly pour in the chicken broth and milk, whisking continuously. Add the onion powder and cook for 3–5 minutes, stirring often, until the sauce has thickened. Remove from the heat.
- In a large bowl, combine the shredded chicken, Greek yogurt, cream sauce, 2 teaspoons poppyseeds, salt, and pepper. Stir until evenly combined.
- Spread the chicken mixture evenly into the prepared baking dish.
- Place the butter crackers in a large zip-top bag, press out the air, and seal. Using your hands or a rolling pin, crush the crackers into fine pieces. Pour the melted butter and remaining 1 teaspoon poppy seeds directly into the bag, then gently shake and mix until the crackers are evenly coated. Sprinkle evenly over the chicken mixture.
- Bake uncovered for 20–25 minutes, or until the casserole is hot and bubbly and the cracker topping is lightly golden.
- Let rest for about 5 minutes before serving. Garnish with parsley, if desired.
