Okay, friend, you know I’m always up for a little kitchen fun, right? Especially when it ends with a simple dinner and happy faces! So, I’m officially kicking off a casserole series here on the blog! So, if you love casseroles, you’ve come to the right place; make sure to bookmark Earth And Oven right now.
We’re talking hearty and satisfying keto casseroles, vegetarian options, other healthy casserole recipes, and always family-friendly versions that’ll save your sanity on those crazy weeknights.
Seriously, what’s not to love about casseroles? They’re basically a one-pot party, which means less scrubbing and more time for, well, everything else! Plus, I swear half my friends are keto these days, so I’m always whipping up something they can enjoy. I’m not strictly keto myself, but I can totally get behind a tasty low-carb dinner!
This keto chicken parmesan casserole is inspired by them. It is one of their favorites. I’ve included instructions for using a slow cooker and a pressure cooker. Speaking of pressure cookers…Seriously, if you don’t have one yet, where have you been hiding? Back in Bedrock cooking over an open fire like Wilma Flintstone? I’m just teasing, but I’m also serious. As a busy mom/wife/trainer, my “Instant Pot Duo 7-in-1” pressure cooker is my sanity-saver! I’ve tried lots of different once throughout my food adventures, but this one is the best by far. This one is good for 4-6 people or meal prep. You need one in your life, trust me.
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Why You’ll Love This Recipe
This keto chicken parmesan casserole is a lifesaver! It’s a hearty meal packed with simple ingredients. This delicious cheesy casserole will become a new family favorite. Forget those boring beige starchy meals that leave you feeling bloated.
Say hello to a plate full of flavor, light but so satisfying that you won’t be hungry till lunchtime tomorrow. Speaking of which, yes, you can definitely meal prep and pack this casserole into containers like these ones and reheat it the next day, it’s actually even better as the flavors meld together overnight.
We are adding vegetables and good-quality protein to this keto chicken parmesan casserole. This is ideal for a healthy lifestyle. Plus, this parmesan chicken casserole will win over even the picky eaters. Trust me, I know picky eaters.

Keto Chicken Parmesan Casserole Recipe
Equipment
Ingredients
- 1.5 lbs chicken breast or chicken thighs. Cut into bite-sized pieces. Whether you want to use the skin-on or skinless is completely up to you.
- 1 tbsp olive oil
- 1 clove of minced fresh garlic
- 1/4 cup of freshly chopped onion
- 1 tsp Italian seasoning
- Salt and black pepper to taste
- 1 large head of cauliflower
- 1 jar x 24 oz no added sugar marinara sauce (or tomato sauce)
- 1 cup grated parmesan cheese
- 2 cups shredded gooey mozzarella cheese
- Fresh basil for garnish optional
Instructions
- Preheat oven to 175C (350F).
- In a large bowl, toss the chicken breast pieces with olive oil, garlic, onion, Italian seasoning, salt, and black pepper.
- Heat a large skillet over medium-high heat. Cook the chicken just to sear it and make it golden brown. You want juicy chicken, so don’t overcook it!
- In a casserole dish, spread a layer of marinara sauce. Add the cauliflower rice or zucchini noodles on top.
- Add the cooked chicken over the rice/noodles. Pour the remaining marinara sauce over the chicken.
- Sprinkle the grated parmesan cheese and shredded gooey mozzarella cheese evenly over the top of the casserole.
- Cover the casserole dish with aluminum foil. Bake for 20 minutes. Remove the foil and bake for another 10-15 minutes. You want a golden brown, bubbly top.
- Garnish with fresh fresh basil before serving.
Notes
Nutrition
Cooking Options: Slow Cooker and Pressure Cooker Keto Chicken Parmesan Casserole
Here’s how to adapt this recipe for your favorite appliances:
Slow Cooker:
Follow steps 2 and 4. Place all ingredients in the slow cooker. Cook on low for 4-6 hours or high for 2-3 hours. Add cheese during the last 30 minutes of cooking.
Pressure Cooker:
Follow steps 2 and 4. Add 1/2 cup of water or chicken broth to the pot. Place all ingredients in the pressure cooker. Cook on high pressure for 10 minutes. Do a quick pressure release. Stir in the cheese and let it melt before serving.
If you are feeling fancy, try breading the chicken, In a shallow bowl, combine mixture of almond flour (or ground pork rinds or crushed pork rinds), parmesan cheese mixture, garlic powder, onion powder, Italian seasoning, salt, and pepper. Dip the chicken cutlets (or chicken tenders) in the breading mixture. Cook in air fryer until the crust is golden brown. Then, follow the casserole instructions.

Serving Suggestions and Storage
Serve this delicious cheesy casserole with a green salad or green beans. You can also make spaghetti squash. Store leftovers in an airtight container in the refrigerator for up to 3 days.
Other Keto Casserole Recipes
Keto Chicken Broccoli Casserole.
Nutritional Information
Each serving (approx. 1/6 of the casserole) contains:
- Calories: 350
- Fat: 20g
- Protein: 35g
- Net Carbs: 5g (total carbs minus fiber)
Disclaimer: Nutritional information may vary.
Final Thoughts
This keto chicken parm casserole is a winner. It is healthy, delicious, and easy to make. It brings the flavors of an Italian restaurant to your table. Ditch the garlic bread and embrace this low-carb delight. It won’t spike your blood sugar. Your whole family will love it. I know my family members do. Next time, I’ll add some mushrooms!
And hey please do me a favor, let me know in the comments what type of casserole you’d like me to experiment with next? What is your favorite protein for casserole bases?