Leftover BBQ Chicken Casserole
Sweet, smoky barbecue chicken tucked into creamy pasta and covered with bubbling cheddar makes this casserole worth opening the oven for. Among leftover bbq chicken casserole recipes, this one stands out for its rich sauce and generous pieces of chicken. Each spoonful brings together tender pasta, tangy barbecue flavor, and melted cheese without letting the chicken disappear into the filling.
Why This Recipe Works
The trick is giving the pasta enough time to soften in the seasoned broth before adding the leftover BBQ chicken. That timing matters. The pasta absorbs the liquid and develops a creamy texture, while the chicken joins the casserole closer to the end. Cream cheese blends into the warm broth, and cheddar thickens the filling. Meanwhile, the barbecue sauce already coating the chicken gives the casserole a sweet, smoky base. A final layer of cheddar creates a bubbling top that makes the dish especially inviting.
Recipe Details
| Recipe Detail | Information |
|---|---|
| Prep Time | 10 minutes |
| Cook Time | 55 minutes |
| Total Time | 65 minutes |
| Servings | 8 |
| Cooking Method | Oven |
| Main Ingredient | Leftover BBQ chicken |
| Baking Dish | 9×13-inch |
What You’ll Need
| Ingredient | Amount |
|---|---|
| Leftover BBQ chicken, boneless and chopped | 3 cups |
| Whipped cream cheese | 7.5 oz |
| Uncooked short pasta, such as rotini or penne | 12 oz |
| Shredded cheddar cheese | 3 cups |
| Olive oil | 3 tablespoons |
| Chicken broth | 4 cups |
| Barbecue seasoning | 1 teaspoon |
| Seasoning salt | ½ teaspoon, or to taste |
| Garlic powder | 1 teaspoon |
| Heavy cream | 1 cup |
| Barbecue sauce | ½ cup, divided |
A Few Ingredient Notes
Leftover BBQ chicken: Chop the chicken into bite-sized pieces, about ¾ inch across. Keep any barbecue sauce that clings to the meat. Those coated edges bring extra flavor to the casserole. Remove bones, skin, and any tough pieces before measuring your 3 cups.
Short pasta: Rotini and penne both work well. Their ridges and hollow centers catch the creamy sauce. Choose a regular dried pasta shape with a similar cooking time, since very small pasta can soften too quickly.
Cream cheese and cheddar: Whipped cream cheese blends easily into the hot pasta mixture. Use shredded cheddar for the filling and the topping. Sharp cheddar gives the sweet barbecue sauce a stronger savory contrast.
Barbecue sauce: Choose a sauce that complements the seasoning on your leftover BBQ chicken. A tangy sauce can balance sweeter chicken, while a smoky sauce reinforces a deeper barbecue flavor. Start with the measured amount so the casserole stays creamy rather than overly sweet.
Chicken broth: The broth cooks the pasta directly in the baking dish. Keep the pasta submerged during the first baking stage for more even cooking.
Reheating Tip
For this casserole, warm the chopped leftover BBQ chicken gently before folding it into the pasta. Place it in a nonstick skillet with a lid over medium-low heat. Add 2 tablespoons of the measured chicken broth and cover for 2–3 minutes, stirring once. The lid traps gentle steam, while the broth keeps the barbecue coating from drying against the pan.
Stop when the chicken is warmed through, then add it to the hot pasta mixture as directed. Use an instant-read thermometer to check that reheated chicken reaches 165°F. Avoid leaving the chicken uncovered over high heat, as the barbecue sauce can stick and darken before the center warms evenly.
How to Bring Back the BBQ Flavor
A little fresh barbecue sauce makes a noticeable difference when the chicken has spent time in the refrigerator. Put the warmed chicken in a small mixing bowl, add ¼ cup of the measured barbecue sauce, and toss gently. The bowl gives you room to coat the pieces without breaking them into tiny shreds.
Taste a small piece before adding more seasoning. Some leftover BBQ chicken is already quite salty or sweet. If yours has a strong barbecue flavor, let the creamy pasta provide the balance. The remaining sauce will go over the casserole near the end, where its tangy flavor stays distinct from the cheese.

How to Make Leftover BBQ Chicken Casserole
Step 1: Prepare the Oven and Baking Dish
Preheat your oven to 425°F (220°C). Set out a 9×13-inch baking dish and a sheet of aluminum foil large enough to cover it tightly.
Place the whipped cream cheese in the center of the dish. Spread the uncooked pasta around it, then sprinkle 1 cup of shredded cheddar over the pasta.
Step 2: Add the Broth and Seasonings
Sprinkle the barbecue seasoning, seasoning salt, and garlic powder evenly across the pasta. Drizzle with olive oil.
Next, pour in the chicken broth. Gently stir the pasta around the cream cheese so the seasoning spreads through the liquid. Keep the cream cheese near the center.
Make sure most of the pasta sits beneath the broth. This helps the pieces soften at a similar rate.
Step 3: Bake the Pasta Until Tender
Cover the baking dish tightly with foil. Bake for 30 minutes.
Carefully remove the foil and stir the cream cheese into the hot broth and pasta. The mixture may look quite loose at first. That’s normal, since the pasta will continue absorbing liquid.
Check a piece of pasta. It should be starting to soften but still have some firmness in the center.
Step 4: Add the Leftover BBQ Chicken
While the pasta finishes its first baking stage, warm the chopped leftover BBQ chicken using the covered skillet method above. Toss it with ¼ cup of barbecue sauce.
Add the chicken to the baking dish along with the heavy cream and another cup of cheddar. Stir gently until the chicken spreads evenly through the pasta.
Cover the dish again and return it to the oven for 15 minutes. The sauce should begin to thicken as the pasta finishes cooking.
Step 5: Melt the Cheddar Topping
Remove the foil and stir the casserole once more. Check the pasta for tenderness.
Sprinkle the remaining cup of cheddar evenly over the surface. Bake uncovered for another 5–10 minutes, until the cheese melts and bubbles around the edges.
If the pasta still feels firm, add a small splash of hot broth, cover, and continue baking briefly before adding the final cheese topping.
Step 6: Rest and Serve
Remove the casserole from the oven and let it rest for 5 minutes. This short rest allows the creamy sauce to settle around the pasta.
Drizzle the remaining ¼ cup of barbecue sauce over the top. Serve warm, scooping down through the melted cheddar to reach the tender BBQ chicken underneath.

Conclusion
The first scoop of this leftover BBQ chicken casserole reveals what makes it so satisfying: soft pasta wrapped in creamy cheddar sauce, with smoky chicken tucked into every serving. The barbecue drizzle adds a tangy finish against the rich cheese. Bring the baking dish straight to the table and let everyone dig beneath that golden topping for their favorite chicken-filled spoonful.










