Chicken Alfredo Biscuit Casserole is the ultimate comfort food for busy weeknights. Tender chicken, creamy Alfredo sauce, melted cheese, and fluffy golden biscuits come together in one delicious casserole that is hearty, satisfying, and incredibly easy to prepare.
This family-friendly dinner combines the rich flavors of classic chicken Alfredo with the comforting texture of buttery biscuits. It requires minimal preparation and can be customized with your favorite vegetables or seasonings.
Ingredients
For the Chicken Alfredo Filling
- 3 cups cooked chicken, shredded or diced
- 2 cups Alfredo sauce
- 1 cup shredded mozzarella cheese
- ½ cup shredded Parmesan cheese
- ½ cup sour cream
- 1 cup frozen peas and carrots, thawed
- 2 cloves garlic, minced
- ½ teaspoon Italian seasoning
- ½ teaspoon garlic powder
- ¼ teaspoon black pepper
- ¼ teaspoon salt, or to taste
For the Biscuit Topping
- 1 tube refrigerated buttermilk biscuits
- 2 tablespoons melted butter
- ½ teaspoon Italian seasoning
- ¼ teaspoon garlic powder
- 2 tablespoons grated Parmesan cheese
Directions
1. Preheat the Oven
Preheat your oven to 375°F (190°C).
Lightly grease a 9×13-inch baking dish with cooking spray or butter.
2. Prepare the Chicken Mixture
Place the cooked chicken in a large mixing bowl.
Add the Alfredo sauce, sour cream, mozzarella cheese, Parmesan cheese, peas and carrots, minced garlic, Italian seasoning, garlic powder, black pepper, and salt.
Stir everything together until evenly combined.
3. Transfer to the Baking Dish
Pour the chicken Alfredo mixture into the prepared baking dish.
Spread it evenly with a spatula so the filling reaches all corners of the dish.
4. Add the Biscuit Topping
Separate the refrigerated biscuits and arrange them evenly over the top of the chicken mixture.
Try to leave a small amount of space between the biscuits so heat can circulate and the tops can brown evenly.
5. Prepare the Butter Topping
In a small bowl, combine the melted butter, Italian seasoning, garlic powder, and Parmesan cheese.
Brush or spoon the mixture over the tops of the biscuits.
6. Bake
Place the casserole in the preheated oven and bake for approximately 25–30 minutes, or until the biscuits are golden brown and cooked through.
If the biscuits are browning too quickly before the filling is hot, loosely cover the casserole with aluminum foil during the final portion of baking.
7. Rest and Serve
Remove the casserole from the oven and let it rest for about 5–10 minutes before serving.
This allows the creamy filling to settle slightly and makes the casserole easier to portion.
Serve warm.
Tips for the Best Chicken Alfredo Biscuit Casserole
- Use fully cooked chicken to make preparation quick and easy.
- Rotisserie chicken works especially well for this recipe.
- Don’t overcrowd the biscuit topping. A little space helps the biscuits cook evenly.
- Use freshly shredded mozzarella for the smoothest melting.
- If your Alfredo sauce is particularly thick, stir in a small splash of milk before combining it with the chicken.
- Allow the casserole to rest before serving so the filling isn’t too runny.
Easy Variations
Broccoli Chicken Alfredo Casserole
Replace the peas and carrots with 1–2 cups of steamed broccoli.
Bacon Alfredo Biscuit Casserole
Add ½ cup cooked and crumbled bacon to the chicken mixture for a smoky, savory flavor.
Spinach Alfredo Casserole
Stir in 1 cup of chopped cooked spinach for extra vegetables.
Spicy Chicken Alfredo
Add crushed red pepper flakes or a pinch of cayenne pepper to the Alfredo mixture.
Extra Cheesy Version
Add an additional ½ cup of mozzarella or Monterey Jack cheese over the chicken mixture before placing the biscuits on top.
What to Serve With It
Because this casserole is rich and creamy, it pairs nicely with lighter sides such as:
- Green salad
- Steamed broccoli
- Roasted asparagus
- Green beans
- Simple tomato salad
- Garlic-roasted vegetables
How to Store Leftovers
Allow the casserole to cool before covering it tightly or transferring leftovers to an airtight container.
Refrigerate for up to 3–4 days.
Reheat individual portions in the microwave or warm the casserole in a covered oven until heated through.
For the best biscuit texture, reheating in the oven or air fryer can help restore some of the crispness.
Can You Freeze Chicken Alfredo Biscuit Casserole?
Yes, but the biscuit topping may have a slightly different texture after freezing and thawing.
For best results, prepare the chicken Alfredo filling and freeze it separately. Add fresh biscuits when you’re ready to bake.
If freezing the completed casserole, allow it to cool completely, wrap it tightly, and freeze for up to 2 months.
Thaw overnight in the refrigerator before reheating.
Frequently Asked Questions
Can I use leftover chicken?
Yes. This recipe is an excellent way to use leftover roasted, baked, or rotisserie chicken.
Can I use homemade Alfredo sauce?
Absolutely. Homemade Alfredo sauce works beautifully and can give the casserole an even richer flavor.
Can I use homemade biscuits?
Yes. Homemade biscuits can be used instead of refrigerated biscuits. Place them over the filling and bake until golden and cooked through.
Why are my biscuits not cooked underneath?
If the filling is very thick or the biscuits are placed too close together, they may take longer to cook underneath. Leave some space between the biscuits and avoid making the filling excessively deep.
Serving Suggestion
Spoon the creamy chicken Alfredo filling onto plates and serve with a golden, buttery biscuit from the top. Add a sprinkle of fresh parsley or Parmesan before serving for an extra finishing touch.
This Chicken Alfredo Biscuit Casserole is warm, creamy, cheesy, and comforting—a simple family dinner that turns everyday ingredients into something special.
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