Leftover Rotisserie Chicken Parmesan Casserole
DinnerPublished May 24, 2026

Leftover Rotisserie Chicken Parmesan Casserole

Transform your leftover rotisserie chicken into a rich, cheesy Chicken Parmesan Casserole the whole family will devour. This easy baked chicken parmesan casserole with pasta comes together in under an hour with pantry staples.

Total Time50 mins
Yield6 servings
Nora
By Nora

The Smartest Thing You Can Do With Leftover Rotisserie Chicken

We have all been there. A rotisserie chicken sits in the fridge after Sunday dinner, picked over but still holding a generous amount of perfectly seasoned, juicy meat. You could toss it into a basic soup or wrap, sure. But what if that leftover bird became the star of a bubbling, golden, crowd-pleasing Chicken Parmesan Casserole that tastes like you spent hours in the kitchen?

This easy baked chicken parmesan casserole with pasta is the kind of weeknight dinner that earns you serious compliments for almost zero extra effort. Tender shredded chicken, al dente penne, a garlicky marinara, layers of melted mozzarella and nutty Parmesan, and a buttery breadcrumb crust that crisps up beautifully in the oven. It is cozy, satisfying, and uses up what you already have.


Why This Recipe Works So Well

Traditional chicken parmesan is a labor of love: breading individual cutlets, frying them, layering everything just so. This baked chicken parmesan casserole borrows all of those classic flavors and streamlines them into one glorious dish. Here is why it always delivers:

  • Rotisserie chicken is already seasoned. The built-in flavor means you are not starting from scratch.
  • The pasta bakes right in the sauce. Everything melds together in the oven for a deeply savory result.
  • Two layers of cheese mean every single bite has that pull-apart mozzarella moment.
  • Buttered breadcrumbs on top mimic the crispy coating of a classic chicken parm without any frying.

Chef's Tip: Pull the chicken while it is still slightly warm from the store. Warm meat shreds far more easily than cold, and the pieces stay juicy rather than dry and stringy.


The Tools and Ingredients That Make a Difference

For a casserole this good, a deep 9x13-inch baking dish is essential so everything has room to bubble and the cheese gets that perfect golden edge. Using freshly grated Parmesan rather than the pre-shredded kind makes a noticeable difference in both flavor and melt.


Building Flavor: The Garlic Marinara Base

Do not skip the step of blooming the garlic in olive oil before adding your marinara. Those 60 seconds in the pan transform the sauce from good to deeply fragrant and rich. Whether you use a favorite jarred marinara or a homemade batch, letting it simmer briefly with the garlic ties everything together.

If you enjoy a little heat, the optional pinch of crushed red pepper flakes here is genuinely worth it. It gives the casserole a gentle warmth that balances the richness of all that cheese without making the dish spicy.

Chef's Tip: Cook your pasta just shy of done, about a minute less than the package directions. It will finish cooking in the oven and absorb some of the sauce, which means no mushy pasta.


Assembling Your Chicken Parmesan Casserole Dish

The layering process here is simple but intentional. A base layer of cheesy, saucy pasta goes down first, followed by a generous blanket of mozzarella. The second layer of pasta goes on top, then the remaining mozzarella and all of that Parmesan. Finally, the buttered breadcrumbs crown the whole thing.

This chicken tender parmesan casserole approach, whether you are using rotisserie chicken, leftover chicken tenders, or even baked chicken tenders you have on hand, follows the same principle. The layering ensures every forkful has pasta, chicken, sauce, and melted cheese in every bite.

Ready to make it? Here is the complete, step-by-step recipe:

Leftover Rotisserie Chicken Parmesan Casserole

Leftover Rotisserie Chicken Parmesan Casserole

Transform your leftover rotisserie chicken into a rich, cheesy Chicken Parmesan Casserole the whole family will devour. This easy baked chicken parmesan casserole with pasta comes together in under an hour with pantry staples.

Prep:15 mins
Cook:35 mins
Total:50 mins
Yield:6 servings
Cuisine:Italian-American
Yield: 6 servingsCalories: 520Protein: 38g
Carbs: 44gFat: 21gSat. Fat: 9gFiber: 3gSugar: 7gSodium: 890mg

Ingredients

Units
Scale
  • 3 cups rotisserie chicken, shredded or roughly chopped, skin removed
  • 12 oz penne pasta, cooked al dente and drained
  • 2 1/2 cups marinara sauce, store-bought or homemade
  • 2 cups shredded mozzarella cheese, divided
  • 3/4 cup grated Parmesan cheese, freshly grated preferred
  • 1/2 cup Italian seasoned breadcrumbs
  • 2 tbsp unsalted butter, melted
  • 3 garlic, cloves, minced
  • 1 tbsp olive oil, extra virgin
  • 1/4 tsp crushed red pepper flakes, optional, for heat
  • 1/4 cup fresh basil, torn, for garnish
  • 1/2 tsp kosher salt, or to taste
  • 1/4 tsp black pepper, freshly cracked

Instruction

1

Preheat your oven to 375 degrees F (190 degrees C). Lightly grease a 9x13-inch casserole dish with olive oil or nonstick spray.

2

Cook the penne pasta according to package directions until just al dente. Drain and set aside. Do not overcook, as it will continue to soften in the oven.

3

In a large skillet over medium heat, warm the olive oil. Add the minced garlic and crushed red pepper flakes and cook for about 60 seconds until fragrant, stirring constantly so the garlic does not burn.

4

Add the marinara sauce to the skillet and stir to combine with the garlic. Simmer for 3 to 4 minutes. Season with salt and black pepper.

5

In a large mixing bowl, combine the cooked pasta, shredded rotisserie chicken, and the warm marinara sauce. Stir until everything is evenly coated.

6

Pour half of the pasta mixture into the prepared casserole dish and spread it into an even layer. Sprinkle with 1 cup of the shredded mozzarella.

7

Add the remaining pasta mixture on top, then finish with the remaining 1 cup of mozzarella and all of the grated Parmesan.

8

In a small bowl, combine the Italian breadcrumbs with the melted butter and stir until the crumbs are evenly moistened. Scatter the breadcrumb mixture over the top of the casserole.

9

Bake uncovered for 25 to 30 minutes, until the cheese is fully melted and bubbling and the breadcrumb topping is golden brown.

10

Remove from the oven and let the casserole rest for 5 minutes before serving. Garnish generously with torn fresh basil.

Equipment

  • 9x13-inch casserole dish
  • Large pot for boiling pasta
  • Large skillet
  • Large mixing bowl
  • Wooden spoon or silicone spatula
  • Small mixing bowl
  • Colander

Notes

This casserole stores beautifully. Cover leftovers tightly and refrigerate for up to 4 days. Reheat individual portions in the microwave for 2 to 3 minutes or reheat the whole dish covered with foil in a 350 degree F oven for 20 minutes. You can assemble the entire casserole up to 24 hours ahead and refrigerate it unbaked. Add the breadcrumb topping just before baking and increase the bake time by about 10 minutes since it will be going in cold. For a crispier topping, broil the casserole for the final 2 to 3 minutes.

Serving, Storing, and Making It Your Own

This parmesan chicken casserole is hearty enough to stand entirely on its own, but a simple green salad with a bright lemon vinaigrette cuts through the richness beautifully. Garlic bread alongside it is never a wrong choice.

Want to customize it?

  • Stir in a handful of baby spinach or sauteed mushrooms with the pasta for added vegetables.
  • Swap the penne for rigatoni or ziti if that is what you have on hand.
  • Use a spicy arrabbiata sauce instead of plain marinara for a bolder, punchier version.
  • Sprinkle fresh basil generously once the casserole comes out of the oven. The heat wilts it just enough and the aroma is wonderful.

Leftovers, if you have any, reheat like a dream and arguably taste even better the next day once all the flavors have had time to settle together. This is the kind of recipe you will find yourself coming back to every time a rotisserie chicken makes its way into your refrigerator.

Frequently Asked Questions

Absolutely. Assemble the entire casserole without the breadcrumb topping, cover tightly with plastic wrap, and refrigerate for up to 24 hours. When ready to bake, add the buttered breadcrumbs on top and bake at 375 degrees F, adding about 10 extra minutes to the cook time since the dish will be cold from the refrigerator.
Yes. Penne works great because it holds the sauce well, but rigatoni, ziti, rotini, or even egg noodles all work beautifully in this chicken parmesan casserole. Just make sure to cook whichever pasta you choose to al dente before assembling.
Stored in an airtight container in the refrigerator, leftovers keep well for up to 4 days. Reheat single servings in the microwave for 2 to 3 minutes, stirring halfway through. To reheat the whole casserole, cover the dish with foil and warm in a 350 degree F oven for 20 to 25 minutes until heated through. A splash of marinara sauce added before reheating helps keep everything moist.
Yes. This casserole freezes well for up to 3 months. Freeze it either before or after baking in a freezer-safe dish tightly wrapped in plastic wrap and foil. Thaw overnight in the refrigerator before baking or reheating. The breadcrumb topping is best added fresh rather than frozen.

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