This High Protein Chicken Parmesan Casserole is a cozy, cheesy weeknight winner that turns leftover or rotisserie chicken into a family-friendly dinner in under an hour. It’s rich with ricotta and mozzarella for creaminess, boosted by grated Parmesan for bite, and finished with a crunchy breadcrumb top — all while keeping the protein count high. If you enjoy repurposing cooked chicken into new meals, this casserole sits in the same easy-meal lane as a high-protein chicken BLT wrap and is just as forgiving.
Why you’ll love this dish
This casserole blends comfort-food familiarity (think classic chicken Parmesan flavors) with meal-prep sense: the bulk of the protein comes from cooked, shredded chicken, so assembly is fast. It’s kid-friendly, great for feeding a crowd, and scales well for leftovers or freezer meals.
“I made this for a busy week and it disappeared — cheesy, not-too-saucy, and easy to reheat.” — real home cook
Reasons to reach for this recipe:
- High-protein, low-effort weeknight dinner.
- Uses pantry staples (marinara, ricotta, Parmesan, breadcrumbs).
- Family-friendly texture and flavors with crisp topping.
- Great for using rotisserie chicken or meal-prepped shredded chicken.
The cooking process explained
Before you start: you’ll mix cooked shredded chicken with marinara and ricotta to create a creamy, well-seasoned filling. That gets layered and topped with mozzarella and Parmesan, then baked until set and golden. A final breadcrumb layer adds crunch. Total active time is mostly assembly — baking is 30–35 minutes at 375°F (190°C).
What to expect while cooking:
- No raw poultry handling if you begin with cooked chicken.
- The filling should be moist but not soupy; adjust marinara quantity if needed.
- Bake until bubbling and golden — a broil for 1–2 minutes at the end deepens the color.
What you’ll need
- 2 cups cooked chicken, shredded (rotisserie, poached breasts, or leftover roasted chicken)
- 1 cup marinara sauce (use a thicker sauce if you prefer less liquid)
- 2 cups ricotta cheese (whole-milk ricotta gives the creamiest texture; drain briefly if very watery)
- 1 cup mozzarella cheese, shredded (use low-moisture mozzarella for better melt and less weep)
- 1/2 cup grated Parmesan cheese, divided
- 1/2 cup breadcrumbs (Panko gives a lighter crunch; regular fine breadcrumbs work too)
- 2 teaspoons Italian seasoning
- Salt and pepper to taste
Notes and substitutions: - For a lighter dairy option, use part-skim ricotta and low-fat mozzarella.
- Gluten-free: swap breadcrumbs for gluten-free panko or crushed cornflakes.
- If you prefer ricotta swapped for cottage cheese, try this twist inspired by a high-protein cottage cheese chicken salad with banana peppers — cottage cheese keeps protein high and changes the texture.
Step-by-step instructions
- Preheat the oven to 375°F (190°C). Grease a 9×9-inch or similar-sized baking dish.
- In a large bowl, combine shredded chicken, marinara sauce, ricotta, Italian seasoning, and a pinch each of salt and pepper. Mix until evenly coated.
- Spread half of the chicken mixture into the bottom of the prepared baking dish and smooth it into an even layer.
- Sprinkle half of the mozzarella and about 1/4 cup of the grated Parmesan over that layer.
- Spread the remaining chicken mixture on top, smoothing it evenly.
- Top with the remaining mozzarella and the rest of the Parmesan.
- Evenly scatter breadcrumbs over the cheese for a crunchy finish; gently press so they adhere.
- Bake uncovered for 30–35 minutes, until the casserole is bubbling and the top is golden. If you want extra browning, broil for 1–2 minutes while watching carefully.
- Let the casserole rest 5–10 minutes before serving so it sets and slices cleanly.
Timing notes: This recipe assumes the chicken is already cooked. If you start with raw chicken, poach or roast and cool/shred first. The casserole’s internal temperature doesn’t need to reach a raw-chicken safety temp because the poultry is pre-cooked, but reheating to 165°F is recommended for leftovers.
Best ways to enjoy it
Serve slices hot straight from the pan with:
- A crisp Caesar or mixed-green salad to cut the richness.
- Garlic bread or a crusty baguette for scooping up sauce.
- Roasted or steamed vegetables (broccoli, asparagus, or green beans).
For low-carb plating, serve over sautéed zucchini noodles or a bed of wilted spinach. Garnish with chopped fresh basil, extra Parmesan, or a drizzle of olive oil to brighten the flavors.
Storage and reheating tips
- Refrigeration: Store in an airtight container or cover the dish tightly with foil. Keeps well for 3–4 days.
- Freezing: Cool completely, then freeze in a freezer-safe dish for up to 2–3 months. For individual portions, wrap tightly to prevent freezer burn.
- Reheating from fridge: Reheat in a 350°F oven for 15–20 minutes (covered to retain moisture), then uncover for 3–5 minutes to re-crisp the breadcrumbs.
- Reheating from frozen: Thaw overnight in the fridge, then reheat as above. If reheating from fully frozen, bake covered at 350°F for 45–60 minutes until heated through.
- Microwave: Quick reheating works (1–3 minutes depending on portion size), but the topping will lose its crunch.
Food safety: Always reheat leftovers to 165°F and discard anything left at room temperature more than 2 hours.
Pro chef tips
- Use warm shredded chicken so the ricotta blends easily and the casserole heats evenly.
- If your ricotta is watery, drain it in a fine mesh sieve for 10–15 minutes to avoid a runny bake.
- For a crispier top, toast the breadcrumbs in a tablespoon of olive oil for 3–4 minutes before sprinkling.
- Don’t over-salt early — Parmesan is salty, so season the filling gently and adjust after baking.
- Layering matters: a cheese layer in the middle keeps the top from sinking and gives a nicer slice.
Creative twists
- Low-carb variation: Omit breadcrumbs and top with a mix of crushed pork rinds and Parmesan.
- Vegetable boost: Stir in 1 cup sautéed spinach or mushrooms to the chicken-ricotta mixture.
- Spicy kick: Add a pinch of red pepper flakes or chopped roasted red peppers to the marinara.
- Vegetarian version: Replace chicken with shredded, roasted eggplant or zucchini and increase ricotta to 3 cups.
- Italian-meets-Mediterranean: Swap marinara for arrabbiata and top with chopped kalamata olives and oregano.
Common questions
Q: How much protein is in a serving?
A: Protein depends on your chicken source. Two cups of cooked shredded chicken provide roughly 40–50 g protein total; divided into 4 servings, expect 10–12 g from chicken alone plus additional protein from ricotta and cheeses.
Q: Can I use raw chicken in the casserole and bake it all together?
A: It’s safest and best-textured to use pre-cooked, shredded chicken. If you use raw boneless chicken, cut into small pieces and increase baking time until chicken reaches 165°F, but the casserole texture will differ.
Q: Can I make this ahead of time?
A: Yes — assemble the casserole, cover, and refrigerate up to 24 hours before baking. Add 5–10 extra minutes to the bake time if baking straight from the fridge.
Q: Is this freezer-friendly?
A: Yes. Freeze fully cooled, covered, for up to 2–3 months. Thaw overnight before reheating for best texture.
Q: Any dairy-free or vegan suggestions?
A: For dairy-free, use coconut-based ricotta substitutes and dairy-free shredded cheeses; choose gluten-free panko if needed. Expect a different texture and flavor profile.
If you’d like a printable shopping list or a calorie/protein breakdown per serving, tell me how many servings you need and I’ll calculate it for you.
PrintHigh Protein Chicken Parmesan Casserole
A cozy, cheesy weeknight dinner that turns leftover or rotisserie chicken into a high-protein casserole, rich with ricotta and mozzarella and topped with crunchy breadcrumbs.
- Prep Time: 10 minutes
- Cook Time: 35 minutes
- Total Time: 45 minutes
- Yield: 4 servings
- Category: Main Course
- Method: Baking
- Cuisine: Italian
- Diet: High Protein
Ingredients
- 2 cups cooked chicken, shredded
- 1 cup marinara sauce
- 2 cups ricotta cheese
- 1 cup mozzarella cheese, shredded
- 1/2 cup grated Parmesan cheese, divided
- 1/2 cup breadcrumbs
- 2 teaspoons Italian seasoning
- Salt and pepper to taste
Instructions
- Preheat the oven to 375°F (190°C). Grease a 9×9-inch baking dish.
- Combine shredded chicken, marinara sauce, ricotta, Italian seasoning, and a pinch of salt and pepper in a large bowl. Mix until evenly coated.
- Spread half of the chicken mixture into the bottom of the prepared baking dish and smooth it into an even layer.
- Sprinkle half of the mozzarella and about 1/4 cup of the grated Parmesan over that layer.
- Spread the remaining chicken mixture on top, smoothing it evenly.
- Top with the remaining mozzarella and the rest of the Parmesan.
- Evenly scatter breadcrumbs over the cheese for a crunchy finish; gently press so they adhere.
- Bake uncovered for 30–35 minutes, until the casserole is bubbling and the top is golden. Broil for 1–2 minutes if extra browning is desired.
- Let the casserole rest for 5–10 minutes before serving.
Notes
For lighter options, use part-skim ricotta and low-fat mozzarella. Gluten-free substitutes for breadcrumbs can be used.