If you are looking for a comforting family dinner with creamy chicken, tender vegetables, melted cheese, and fluffy golden biscuits, this Cheesy Chicken & Biscuit Casserole is a perfect recipe to make. It has all the cozy appeal of a chicken pot pie, but instead of pastry, the top is covered with buttery biscuits that bake until puffed and golden.
The filling is rich and savory, made with chicken, garlic, onion, vegetables, chicken broth, milk, sour cream, and plenty of cheese. The biscuits soak up some of the creamy sauce underneath while staying soft inside and beautifully browned on top.
This casserole is especially good for busy weeknights, cold-weather dinners, potlucks, or anytime you want something easy, hearty, and family-friendly.
Why You’ll Love This Cheesy Chicken & Biscuit Casserole
The creamy chicken filling is rich without being complicated.
Refrigerated biscuits make the recipe quick and beginner-friendly.
Cheddar and mozzarella add plenty of melted cheese.
Frozen mixed vegetables save prep time.
You can use leftover chicken or rotisserie chicken.
The casserole is filling enough to serve as a complete dinner.
Ingredients
For the Chicken Filling
- 3 cups cooked chicken, shredded or chopped
- 2 tablespoons unsalted butter
- 1 tablespoon olive oil
- 1 medium yellow onion, finely diced
- 3 garlic cloves, finely minced
- 2 cups frozen mixed vegetables
- 3 tablespoons all-purpose flour
- 1½ cups low-sodium chicken broth
- 1 cup whole milk
- ½ cup sour cream
- 1 teaspoon Dijon mustard
- 1 teaspoon garlic powder
- ½ teaspoon onion powder
- 1 teaspoon Italian seasoning
- ½ teaspoon dried thyme
- ½ teaspoon freshly ground black pepper
- ½ teaspoon kosher salt, or to taste
For the Cheese
- 1½ cups shredded sharp cheddar cheese
- 1 cup shredded low-moisture mozzarella cheese
- ¼ cup freshly grated Parmesan cheese
For the Biscuit Topping
- 1 can refrigerated biscuits, about 8 large biscuits
- 2 tablespoons unsalted butter, melted
- 1 garlic clove, finely minced
- ½ teaspoon garlic powder
- 1 tablespoon chopped fresh parsley
- 2 tablespoons grated Parmesan cheese
Optional Add-Ins
- ½ cup crispy crumbled bacon
- 1 cup chopped broccoli
- 1 cup sautéed mushrooms
- ½ cup corn
- ½ cup peas
- 1 cup diced cooked potatoes
How to Make Cheesy Chicken & Biscuit Casserole
1. Preheat the Oven
Preheat your oven to 375°F (190°C).
Lightly grease a 9×13-inch baking dish.
2. Prepare the Chicken
If using freshly cooked chicken, shred or chop it into bite-size pieces.
If you are using rotisserie chicken, remove the skin and bones before shredding.
You need approximately 3 cups cooked chicken.
3. Heat the Skillet
Place a large skillet over medium heat.
Add:
- Butter
- Olive oil
4. Cook the Onion
Add the diced onion.
Cook for approximately 4–5 minutes until softened.
5. Add Garlic
Stir in the minced garlic.
Cook for approximately 30 seconds.
6. Add the Vegetables
Add the frozen mixed vegetables.
Cook for approximately 3–4 minutes.
They do not need to be completely cooked because they will continue cooking in the oven.
7. Sprinkle in the Flour
Add the flour.
Stir continuously for approximately 1–2 minutes.
The flour should coat the vegetables and lose its raw appearance.
8. Add Chicken Broth
Slowly pour in the chicken broth while stirring.
Scrape up any browned bits from the bottom of the skillet.
9. Add the Milk
Gradually add the milk.
Stir until smooth.
10. Add Seasonings
Add:
- Dijon mustard
- Garlic powder
- Onion powder
- Italian seasoning
- Thyme
- Black pepper
- Salt
11. Simmer
Cook over medium-low heat for approximately 4–6 minutes.
The sauce should begin to thicken.
12. Add Sour Cream
Reduce the heat to low.
Stir in the sour cream.
13. Add Cheddar
Add 1 cup cheddar cheese.
Stir until melted.
14. Add Mozzarella
Stir in ½ cup mozzarella.
15. Add Parmesan
Stir in the Parmesan.
16. Add the Chicken
Fold in the cooked chicken.
17. Add Optional Ingredients
If using bacon, mushrooms, broccoli, or other add-ins, stir them in now.
18. Check the Sauce
The filling should be creamy but still slightly loose.
If it seems too thick, add a splash of chicken broth or milk.
This is important because the biscuits will absorb some moisture while baking.
19. Transfer to the Baking Dish
Spread the chicken mixture evenly into the prepared baking dish.
20. Add More Cheese
Sprinkle the remaining cheddar and mozzarella over the filling.
21. Prepare the Biscuits
Open the refrigerated biscuits.
You can leave them whole or cut each biscuit into halves for a more even topping.
22. Arrange the Biscuits
Place the biscuits evenly over the casserole.
Leave a small amount of space between them so hot air can circulate.
23. Make the Garlic Butter
In a small bowl, combine:
- Melted butter
- Garlic
- Garlic powder
- Parsley
- Parmesan
24. Brush the Biscuits
Brush the garlic butter generously over the tops of the biscuits.
25. Bake
Place the casserole in the oven.
Bake uncovered for approximately 25–35 minutes.
26. Check the Biscuits
The tops should be golden brown.
27. Check the Centers
Carefully lift or separate one biscuit near the center.
The underside should be fully baked rather than doughy.
28. Continue Baking if Needed
If the tops are browned but the centers need more time, loosely cover with foil.
Bake for another 5–10 minutes.
29. Check the Filling
The creamy chicken filling should be bubbling around the edges.
30. Rest
Remove the casserole from the oven.
Let it rest for approximately 5–10 minutes.
This allows the sauce to thicken slightly.
31. Garnish
Finish with:
- Fresh parsley
- Extra Parmesan
- Black pepper
32. Serve
Spoon the creamy chicken filling onto plates with one or two biscuits per serving.
What to Serve With Cheesy Chicken & Biscuit Casserole
This casserole is filling enough to serve as a complete meal.
For lighter sides, try:
- Garden salad
- Caesar salad
- Green beans
- Roasted broccoli
- Garlic asparagus
- Brussels sprouts
You can also serve it with:
- Cranberry sauce
- Roasted carrots
- Corn
- Coleslaw
Tips for the Best Chicken & Biscuit Casserole
Keep the Filling Slightly Loose
The biscuits absorb some moisture as the casserole bakes.
Use Cooked Chicken
Chicken should already be fully cooked before assembling the casserole.
If cooking chicken specifically for this recipe, cook it to 165°F (74°C).
Don’t Overcrowd the Biscuits
Leave a little space between them so the sides can bake.
Check the Biscuit Centers
Golden tops do not always mean the underside is fully baked.
Use Freshly Shredded Cheese
It melts more smoothly than many pre-shredded varieties.
Add Sour Cream Over Low Heat
This helps keep the sauce creamy.
Cover if the Tops Brown Too Fast
Loose foil protects the biscuits while the centers finish baking.
Let the Casserole Rest
A short rest helps the filling thicken before serving.
Easy Recipe Variations
Bacon Cheddar Chicken Biscuit Casserole
Add ½–1 cup crispy crumbled bacon.
Increase the cheddar slightly.
Broccoli Chicken Biscuit Casserole
Add 2 cups lightly steamed broccoli florets.
Garlic Parmesan Chicken Biscuit Casserole
Increase the garlic and Parmesan.
Mushroom Chicken Casserole
Add 8 ounces sliced mushrooms.
Cook them until browned and their moisture evaporates before adding them to the sauce.
Spicy Chicken Biscuit Casserole
Add:
- Jalapeños
- Cayenne
- Red pepper flakes
- Pepper Jack cheese
Ranch Chicken Biscuit Casserole
Add 1 tablespoon ranch seasoning to the creamy filling.
Buffalo Chicken Biscuit Casserole
Stir ¼–⅓ cup buffalo sauce into the chicken mixture.
Top with cheddar and serve with ranch.
Ham & Chicken Biscuit Casserole
Add 1 cup diced cooked ham.
How to Store Leftovers
Allow leftovers to cool before transferring them to an airtight container.
Refrigerate for up to 3–4 days.
Reheating in the Oven
Place leftovers in an oven-safe dish.
Cover loosely with foil.
Reheat at 350°F (175°C) until hot.
Uncover for the final few minutes to refresh the biscuit topping.
Reheating in the Microwave
Microwave individual portions in short intervals.
The biscuits will become softer but will still taste good.
Reheating in the Air Fryer
If storing biscuits separately, they can be reheated in an air fryer at approximately 350°F until warm and crisp.
Freezing
For best results, freeze the creamy chicken filling without the biscuits.
Cool the filling completely.
Transfer to a freezer-safe container.
Freeze for up to approximately 2 months.
Thaw overnight in the refrigerator.
Transfer to a baking dish, add fresh refrigerated biscuits, and bake as directed.
Fully assembled baked casserole can also be frozen, but the biscuits may soften slightly after thawing.
Frequently Asked Questions
Can I use rotisserie chicken?
Yes. Rotisserie chicken is one of the easiest options for this casserole.
Can I use canned biscuits?
Yes. Refrigerated canned biscuits work perfectly.
Can I use homemade biscuits?
Absolutely. Homemade biscuit dough can be portioned over the casserole before baking.
Why are the bottoms of my biscuits doughy?
The filling may have been too wet, the biscuits may have been packed too closely together, or the casserole may need a little more baking time.
Can I make this ahead?
Yes. Prepare the chicken filling up to a day ahead. For best results, add the biscuits immediately before baking.
Can I use frozen vegetables?
Yes. They work very well and do not need to be fully thawed first.
Can I add potatoes?
Yes. Use diced cooked potatoes so they are tender by the time the biscuits finish baking.
What cheese works best?
Sharp cheddar is excellent, while mozzarella, Monterey Jack, Pepper Jack, or Parmesan can be used alongside it.
Final Thoughts
This Cheesy Chicken & Biscuit Casserole combines tender chicken, vegetables, garlic, creamy cheese sauce, cheddar, mozzarella, Parmesan, and buttery golden biscuits in one comforting family dinner.
The key is keeping the chicken filling slightly loose, using fully cooked chicken, spacing the biscuits properly, and checking that the centers of the biscuits are cooked through before removing the casserole from the oven.
Serve it hot with a crisp salad or green vegetables for a cozy, creamy, cheesy dinner that combines the best parts of chicken pot pie and homemade biscuits in one easy casserole.