Keto Chicken Parmesan Casserole – Cheesy, Low-Carb, and Family-Friendly

If your weeknights are anything like mine—busy, hungry, and in need of something hearty—this Keto Chicken Parmesan Casserole is about to become your go-to. It’s everything we love about classic chicken parm—savory marinara, melted cheese, a golden top—without the carbs or complicated prep.

This dish is inspired by the cozy Italian dinners my Nonna used to make, but modernized to fit a low-carb lifestyle. It’s warm, satisfying, and couldn’t be easier to throw together, especially when using leftover or rotisserie chicken. Plus, it’s kid-approved and makes excellent leftovers.

Why You’ll Love This Keto Chicken Parmesan Casserole

Low-Carb Comfort Food: All the indulgence of chicken parm, none of the guilt.

Quick and Easy: Just mix, layer, and bake—done in 35 minutes.

Meal Prep Friendly: Makes 4 hearty portions and reheats beautifully.

Protein-Packed: With over 30g of protein per serving, it fuels you through the day.

Family Favorite: Melty cheese and savory flavors make it a hit with kids and adults alike.

Ingredients (4 Servings)

  • 3 cups cooked, shredded chicken (about 1 rotisserie chicken)

  • 1 cup sugar-free marinara sauce

  • 1 ½ cups shredded mozzarella cheese

  • 1/2 cup grated parmesan cheese

  • 1/4 cup crushed pork rinds or almond flour (for a crispy topping)

  • 1 tsp Italian seasoning

  • 1/2 tsp garlic powder

  • 1/2 tsp onion powder

  • Salt and pepper, to taste

  • Olive oil or butter, for greasing

  • Fresh basil or parsley, for garnish (optional)

Tools You’ll Need

  • 9×9” casserole dish

  • Mixing bowl

  • Measuring cups and spoons

  • Oven mitts

  • Spatula or serving spoon

How to Make Keto Chicken Parmesan Casserole

Step 1: Preheat the Oven

Start by preheating your oven to 375°F (190°C). Lightly grease your casserole dish with olive oil or butter.

Step 2: Mix the Chicken Layer

In a large bowl, combine the shredded chicken, marinara sauce, Italian seasoning, garlic powder, onion powder, and a pinch of salt and pepper. Stir until evenly coated.

Step 3: Assemble the Casserole

Spread the chicken mixture evenly into your prepared baking dish. Sprinkle mozzarella cheese over the top.

Step 4: Add the Parmesan Topping

Mix the grated parmesan with crushed pork rinds or almond flour. Sprinkle this over the mozzarella to create a golden, crispy crust.

Step 5: Bake and Broil

Bake for 20–25 minutes, or until hot and bubbly. For a crispier top, broil on high for the last 2–3 minutes—just watch closely!

Step 6: Rest and Serve

Let the casserole cool for 5 minutes before serving. Garnish with fresh basil or parsley if you’d like.

Nutrition Info (Per Serving)

  • Calories: ~380

  • Protein: 33g

  • Net Carbs: 3g

  • Fat: 25g

  • Fiber: 2g

  • Sugar: 3g

  • Cholesterol: 105mg

  • Sodium: 600mg

Tips for the Best Chicken Parmesan Casserole

  • Use Rotisserie Chicken: It’s faster and perfectly tender.

  • Make it Richer: Add a tablespoon of cream cheese into the chicken mix for extra creaminess.

  • Go Crispier: Broil the top for 2 minutes at the end for a restaurant-style crust.

  • Want it Spicy? Add red pepper flakes or swap in spicy marinara.

Flavor Variations

Cheesy Alfredo Casserole: Swap marinara for keto alfredo and use mozzarella plus provolone.

Buffalo Chicken Parm: Add buffalo sauce to the chicken and top with blue cheese crumbles.

Zucchini Layer: Add sliced zucchini beneath the chicken layer for a veggie boost.


Topping Ideas

  • Fresh chopped basil or parsley

  • Grated extra parmesan before serving

  • Dollop of pesto or sugar-free tomato relish

  • A drizzle of olive oil or truffle oil

Make-Ahead & Storage Tips

Fridge: Store leftovers in an airtight container for up to 4 days.
Freezer: Freeze individual portions with parchment in between. Thaw overnight and reheat.
Reheat: Microwave for 1–2 minutes or bake at 325°F for 10–12 minutes for best texture.

Benefits of This Keto Casserole

Low in Carbs, High in Flavor: Perfect for ketogenic and low-carb diets without feeling restrictive.

Protein-Focused: Keeps you full, supports energy levels, and aids muscle recovery.

Family Friendly: Comforting enough for picky eaters, healthy enough for clean eaters.

One-Dish Wonder: Easy clean-up and great for busy weeknights or lazy Sundays.

Print
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Golden keto chicken parmesan casserole topped with melted mozzarella, crispy bacon, and fresh herbs in a white baking dish

Keto Chicken Parmesan Casserole – Cheesy, Low-Carb, and Family-Friendly


  • Author: Helen Bittner
  • Total Time: 35 minutes
  • Yield: 4 servings 1x
  • Diet: Gluten Free

Description

This Keto Chicken Parmesan Casserole is a low-carb twist on a comfort food classic. Juicy shredded chicken is layered with rich marinara, melted mozzarella, and a golden parmesan topping that bakes to perfection. Quick to prep and big on flavor, this easy casserole is keto-friendly, gluten-free, and loved by the whole family.


Ingredients

Scale
  • 3 cups cooked, shredded chicken (rotisserie works well)

  • 1 cup sugar-free marinara sauce

  • 1 ½ cups shredded mozzarella cheese

  • 1/2 cup grated parmesan cheese

  • 1/4 cup crushed pork rinds or almond flour (for topping)

  • 1 tsp Italian seasoning

  • 1/2 tsp garlic powder

  • 1/2 tsp onion powder

  • Salt & pepper to taste

  • Olive oil or butter for greasing

  • Fresh basil or parsley for garnish (optional)


Instructions

Step 1: Preheat the oven to 375°F (190°C) and grease a 9×9” casserole dish with olive oil or butter.
Step 2: In a large bowl, mix shredded chicken with marinara sauce, Italian seasoning, garlic powder, onion powder, and a pinch of salt and pepper.
Step 3: Spread the chicken mixture evenly in the dish and top with shredded mozzarella.
Step 4: In a small bowl, mix parmesan with crushed pork rinds or almond flour. Sprinkle over the casserole.
Step 5: Bake uncovered for 20–25 minutes until bubbly and golden. For a crispier top, broil for 2–3 minutes.
Step 6: Let it rest for 5 minutes before serving. Garnish with fresh herbs if desired.

Notes

  • Substitute almond flour with more parmesan if preferred.

  • Add a tablespoon of cream cheese to the chicken mix for extra richness.

  • This casserole stores well in the fridge for up to 4 days or can be frozen in portions.

  • Great for keto meal prep or potluck-style dinners.

  • Prep Time: 10 minutes
  • Cook Time: 25 minutes
  • Category: Dinner, Main Course
  • Method: Baked
  • Cuisine: Italian-American

Nutrition

  • Serving Size: 1/4 casserole
  • Calories: 380 kcal
  • Sugar: 3g
  • Sodium: 600mg
  • Fat: 25g
  • Saturated Fat: 10g
  • Unsaturated Fat: 12g
  • Trans Fat: 0g
  • Carbohydrates: 5g
  • Fiber: 2g
  • Protein: 33g
  • Cholesterol: 105mg

Keywords: keto chicken parmesan casserole, low carb casserole, cheesy keto dinner

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