Skinny Chicken Parmesan Casserole
Light, comforting, and deeply satisfying, this Skinny Chicken Parmesan Casserole takes the flavors you love from classic chicken Parmesan and turns them into a simple, weeknight-friendly dish. Using whole-grain penne, lean chicken breast, no-sugar-added marinara, and a modest amount of cheese and whole-wheat panko, this casserole gives you all the cozy Italian vibes without weighing things down. It’s built for family dinners, meal prep, or a dish to bring to a casual potluck—easy to assemble, easy to bake, and easy to love.
Why you’ll love this casserole
- Uses whole-grain penne for extra fiber and a nutty texture that holds up well in a bake.
- Lean, bite-size chicken breast pieces cook quickly and stay tender when combined with sauce and pasta.
- Marinara with no added sugar and optional diced tomatoes keep the tomato flavor bright and clean.
- A modest layer of skim mozzarella and a crunchy whole-wheat panko topping give you cheesy satisfaction with less fat.
- Simple pantry ingredients and straightforward steps make this a reliable go-to recipe.
Ingredients
Use the list below exactly as specified—the directions rely on these amounts and names.
- 1 pound penne pasta whole grain
- 1 jar marinara sauce 24-25 ounce jar, no sugar added
- 15 ounces diced tomatoes optional
- 1 pound boneless and skinless chicken breasts cut into bite size pieces
- 1 cup skim mozzarella cheese shredded
- 1/2 cup Panko bread crumbs whole wheat
- 1/4 cup grated parmesan cheese
- 1 teaspoon Italian Seasoning optional, ground oregano
Equipment
- Large pot for boiling pasta
- Large skillet or sauté pan for cooking chicken
- 9×13-inch or equivalent casserole dish
- Wooden spoon or spatula
- Measuring cups and spoons
- Colander
Prep and timing
Total time: about 50–60 minutes
- Active time: 20–30 minutes
- Bake time: 20–30 minutes
Flavor tips
- If you like a little brightness, stir a tablespoon of red wine vinegar or a squeeze of lemon into the marinara before combining with the pasta.
- For more herb aroma, sprinkle an extra pinch of the Italian seasoning over the cheese layer before baking.
- If you prefer extra crunch, toast the whole-wheat panko in a dry skillet with a light spray of oil until golden, then top the casserole just before baking or in the final five minutes.
Step-by-step directions
These directions follow the ingredient list exactly and are rewritten for clarity and flow. Read through once before starting, then follow each step in order.
- Preheat the oven to 375°F (190°C). Lightly grease a 9×13-inch casserole dish or an equivalent-size baking dish and set it aside so it’s ready when the pasta and chicken are combined.
- Bring a large pot of salted water to a rolling boil. Add 1 pound penne pasta whole grain and cook until al dente according to the package directions—usually 9 to 11 minutes. Drain the pasta in a colander and briefly run under warm water to stop cooking if desired. Return the drained pasta to the pot or set in a large mixing bowl.
- While the pasta cooks, heat a large skillet over medium-high heat. Add a small drizzle of oil (about 1 tablespoon) to the pan if your skillet is dry. Add 1 pound boneless and skinless chicken breasts cut into bite size pieces. Cook the chicken, stirring occasionally, until the pieces are cooked through and no longer pink in the center, about 6 to 8 minutes depending on the size of the pieces. Season the chicken lightly with salt and pepper if desired. If the chicken releases juices, let them reduce slightly in the pan so the chicken has a little color and concentrated flavor.
- Once the chicken is cooked, remove the skillet from the heat. If using 15 ounces diced tomatoes optional, stir the diced tomatoes into the cooked chicken in the skillet now so the flavors begin to meld. If not using the diced tomatoes, skip this step and proceed with the marinara.
- Pour 1 jar marinara sauce 24-25 ounce jar, no sugar added into the pot with the drained pasta, or into the large mixing bowl with the pasta. Add the cooked chicken (and diced tomatoes if used) to the pasta and sauce. Gently toss everything together until the pasta and chicken are evenly coated with the marinara.
- Sprinkle 1 teaspoon Italian Seasoning optional, ground oregano over the pasta-and-chicken mixture. Toss gently once more to distribute the herbs evenly. Taste a small bite and adjust seasoning with salt and pepper if needed.
- Transfer the sauced pasta and chicken mixture into the prepared 9×13-inch casserole dish, spreading it into an even layer so it bakes uniformly.
- Sprinkle 1 cup skim mozzarella cheese shredded evenly over the top of the pasta and chicken mixture. Then, in a small bowl, combine 1/2 cup Panko bread crumbs whole wheat with 1/4 cup grated parmesan cheese. Stir the crumbs and cheese together until well mixed.
- Evenly scatter the panko-parmesan mixture over the shredded mozzarella layer. This will create a light, toasty topping that crisps as the casserole bakes.
- Cover the casserole loosely with aluminum foil and place it in the preheated oven. Bake covered for 15 minutes to allow the interior to heat through and the cheese to start melting.
- After 15 minutes, remove the foil and continue baking uncovered for an additional 8 to 15 minutes, until the cheese is melted, the topping is golden brown, and the casserole is bubbling around the edges. Oven times vary; check at 8 minutes and continue in 2- to 3-minute increments if more browning is desired.
- Remove the casserole from the oven and let it rest for 5 to 10 minutes before serving. Resting helps the casserole set, makes it easier to portion, and keeps the cheese from sliding off the pasta when plated.
Serving suggestions
- Serve this casserole with a crisp green salad dressed with lemon and olive oil to add freshness and crunch.
- Roasted or steamed vegetables like broccoli, green beans, or a medley of seasonal vegetables pair nicely and round out the meal.
- Leftovers reheat well in the oven at 350°F (175°C) for 10–15 minutes or in the microwave for 2–3 minutes, depending on portion size.
Make-ahead and storage
- To prepare ahead: Assemble the casserole through step 9, cover tightly, and refrigerate for up to 24 hours. When ready to bake, remove from the refrigerator and bake as directed, adding 5–10 minutes to the covered baking time if cold from the fridge.
- To freeze: Assemble the casserole in a freezer-safe dish through step 9, cover tightly with plastic wrap and foil, and freeze for up to 3 months. Thaw overnight in the refrigerator before baking. Bake according to directions, adding 10–15 minutes to the covered baking time if still slightly chilled.
- Storage: Cool leftovers to room temperature, then refrigerate in an airtight container for up to 4 days. Reheat thoroughly before serving.
Nutritional notes
This recipe leans lighter by using skim mozzarella and a modest amount of whole-wheat panko for topping. Whole-grain penne adds fiber and makes this dish more filling, while lean bite-size chicken breast keeps protein high without excess fat. Using a no-sugar-added marinara keeps the sauce focused on tomato flavor and reduces added sugars common in many jarred sauces.
Common questions
- Can I use a different pasta shape? Yes—rigatoni, ziti, or penne alternatives in whole-grain versions work equally well.
- Can I make this vegetarian? Replace the chicken with sautéed mushrooms, roasted eggplant, or a plant-based protein and follow the same process.
- Do I have to brown the chicken first? Browning adds flavor and color, and it helps the chicken pieces hold their texture inside the casserole. If short on time, you can cook the chicken through in the sauce while simmering, but ensure it reaches a safe internal temperature before baking.
Final notes
This Skinny Chicken Parmesan Casserole balances comfort and practicality. It’s forgiving, flavorful, and structured so you can follow each step without guesswork. Whether you’re feeding a family or packing lunches for the week, this casserole delivers that classic Italian-inspired comfort in a lighter, everyday-friendly way.
Skinny Chicken Parmesan Casserole
A lighter, family-friendly chicken parm baked casserole with penne, marinara, and a crisp breadcrumb topping.
Ingredients
Equipment
Method
- Preheat the oven to 375°F (190°C).
- Cook the whole-grain penne according to package directions until al dente, then drain and set aside.
- In a 9 x 13-inch casserole dish, combine the cooked pasta, marinara sauce, diced tomatoes (if using), and the bite-size chicken pieces; stir until evenly mixed.
- Cover the casserole and bake for 30 minutes.
- While the casserole bakes, mix the Panko, grated Parmesan, and Italian seasoning in a small bowl to make the topping.
- After 30 minutes, remove the casserole from the oven, stir in the shredded mozzarella, and evenly sprinkle the breadcrumb mixture over the top.
- Return the casserole to the oven uncovered and bake an additional 10–15 minutes, or until the chicken is cooked through and the topping is golden and crispy.
- Let rest a few minutes before serving.
Notes
- The casserole can be made with or without diced tomatoes based on tomato preference.
- For a cheesier dish, add 1/4 cup ricotta and 1/4 cup cottage cheese with the mozzarella.
- To make it vegetarian, omit the chicken and proceed with the same directions.
- Garnish with fresh basil if desired.
- This casserole is versatile and adapts to ingredient swaps.
