
This Parmesan Chicken Casserole comes together in no time using only 6 ingredients! Flavorful, family approved, and a blog favorite!
Since my “Melt in your Mouth Chicken” has been such a hit with everyone, I decided to change it up just a bit and make it more into a casserole. Not too many changes to the original dish, mainly just the fact that instead of using whole chicken breasts, it is diced chicken, making it easier to serve over something! I served this over spaghetti noodles last week and the entire family was ranting and raving over how yummy this was.
The cooking time was less due to the chicken being cut up, the flavor was amazing, and the chicken was incredibly moist. The leftovers the next day were just as good, making this a meal I will definitely make again!!

If you want to make this a bit more healthy, you can use plain Greek yogurt in place of the mayonnaise. It works, but it doesn’t have as rich and creamy of a flavor! And yes, after several people telling me this isn’t really a “casserole”, I agree, however, since its cooked in a casserole pan….I ran with it, haha!
Serve over rice, pasta, in a lettuce wrap, or as is! Even perhaps cauliflower rice, zoodles, etc. for healthy options!
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Parmesan Chicken Casserole
Video
Equipment
Ingredients
- 6 boneless, skinless chicken breasts, diced
- 1 cup mayonnaise (or Greek yogurt)
- 1 cup shredded Parmesan cheese
- 1 teaspoon seasoning salt
- ½ teaspoon ground black pepper
- 1 teaspoon garlic powder
Instructions
- In a small bowl, combine the mayonnaise, ¾ cup Parmesan, seasoning salt, black pepper, and garlic powder. Set aside.
- Place diced chicken into a greased 9×13 baking pan.
- Spread mayonnaise mixture evenly on top of the chicken.
- Sprinkle remaining Parmesan cheese on top of mayonnaise mixture.
- Place baking pan in preheated oven, 375 degrees, and bake for 30-35 minutes.
- Remove from oven and serve over pasta, rice, or by itself.
Notes
Nutrition

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Dawn says
If the result creates so much liquid, you may be able to add the pasta dry to the dish, and then put the chicken mixture on top, cover with foil and bake. You will
Kristin says
Hmmmm, I like the idea of eliminating a step, the only thing that makes me hesitate, is putting raw chicken over the pasta. Then again, I think that that should be fine since it would be cooking right away. Ill definitely try that soon!!! Thanks Dawn!
Terri Gardynecki says
To Karen…I also used Greek yogurt. Mine too was soupy. That’s whamade it so good! I used the liquid to season each plate of noodles before topping it with the chicken. Had I not done that it would have lacked a ‘sauce’. Very very good…again
One of my ALL TIME FAVORITES!!!
Terri Gardynecki says
I used 1/4 cup Hellman’s and the rest plain yogurt. Had water in dish after baking. This was taste and what I used to ‘season’ the noodles on the plate! Oh so good!!
Kristin says
Great idea on using the liquid!!! 🙂
Terri Gardynecki says
Best thing I ever put in my mouth!!!
Kristin says
Yea!! I love that you enjoyed it so much!!! 🙂
Anonymous says
This was FANTASTIC ppl!! I can’t wait to make it again! Thanks for this delish recipe. One of my ALL TIME favorites!!!
Kristin says
Yea!! So glad you enjoyed it!!!!
eleanor hohman says
I made this using 2cchicken breasts and mayo.It had a lot of oil on top no juice to put on top of chicken. Very good taste. Please Help.
Kristin says
Hmmmm, what kind of mayonnaise did you use? This is supposed to create a thick coating on top of the chicken basically, and the chicken will be moist. Let me know what kind of mayo you used and we can narrow down potential reasons why it was oily 🙂
Krystal says
It says seasoned salt ? Is that something like Mrs. dash?
Kristin says
It is on a bottle called seasoned salt, its a bit different than regular salt and the color is more “orangish”. If you cannot find it, you can use the Mrs Dash bottle, or garlic salt 🙂
Donna says
great taste
Kristin says
For sure! Glad you enjoyed it!!
Nicole says
In the picture, Is that parsley or Rosemary on top? And if I cook chicken whole, how long should I cook it?
Kristin says
I sprinkled Parsley on top 🙂
As for cooking the chicken whole, it would be about 45 minutes, depending on the size of chicken 🙂
Diane says
I would recommend adding in the recipe to drain the chicken afterwards… It startled me when I got the chicken out and my husband almost wouldn’t eat it. We did, but I could tell with his every bite that he thought he would be getting sick lol. Wish I would have read the comments first so we could have been a little more confident that it was suppose to be soupy. Had a nice taste though so I’ll have to try again
Kristin says
LOL, sorry it surprised you both. It definitely is soupy, but once liquid is drained, the chicken is incredibly flavorful and moist!! 🙂
Lori says
I altered the recipe. I used 1/2 c low fat mayo
to 1/2 c low fat sour cream, added 1 T light Olive oil, sprinkled Basil & Oregano overtop with the remaining Parm (1/4 cup)
I am serving over Angel Hair Spag, and Broccoli on the side.
Kristin says
Ooooo yum!! Sounds great!!
Shelly says
Sorry, I meant it was delish! Not relish! ?
Kristin says
Hehe, gave me a little giggle but I knew what you meant 🙂
Glad you enjoyed it!!
Shelly says
It was so relish! The most easiest recipe to make. I used the mayo and did add a little oregano to the top. Served it on top of spaghetti and with a salad. Loved it! Thanks for sharing it!
Kristin says
Yea!! So glad you enjoyed it!!
Shelly says
Just mix the mayo mixture and it tastes amazing…can’t wait to finish preparing it & serving it to my family. I’ll let you know how we liked it.
Kristin says
Yum!!! Keep me posted 🙂
Anonymous says
Just put my dish in the oven, hop it turns out great
Kristin says
Yea!!! How was it???