
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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Lavonne says
Very good, but too salty. Will cut salt in half next time.
Kristin says
Oh yes, that definitely can be a preference thing! Glad you enjoyed!!
Leah says
I just mixed mayo and parm and baked. I yse this mixture on french bread toast also. Soooo good!!definitely making this again and again!
Kristin says
Yay! Glad you enjoyed! Love the idea of using the mixture on French bread too! Yum!!
Loretta says
This was awesome!! Will be in our rotation for sure. I served it with pasta and Brussels Sprouts !!
Kristin says
Yay!! So glad you enjoyed! It is a favorite in my house, we are actually having that for dinner again tonight!!
Cindy B says
My belly is literally growling in anticipation of trying this dish! One question about the “grated” Parmesan. Is that Parmesan in the green can? I’m not a fan of the canned, but if that’s what makes this recipe work over freshly grated, I’ll go with it. As an aside, I noticed a multitude of people either commented or complained about the “soupiness” in the pan that resulted during the chicken cooking process. I’d just like to point out to those folks that you addressed this in your “Notes” at the bottom of the recipe. Always a good idea for people to read through your entire recipe page before asking questions that might’ve already been covered. Thanks for your wonderful recipes, Kristin!
Kristin says
Hi Cindy! I tend to use the grated (green can) in this recipe because it blends into the mixture better, however, either type works great, so no need to get the can if you don’t already have it on hand! Hope you enjoy and be sure to keep me posted!
Tricia says
It was okay. But like other reviewers stated, 1) not a casserole and 2) it’s soupy. If you’re using rice, I think the extra juice is fine. However, for pasta, I wanted it to be thicker. I added a can of cream mushroom and that made a thicker consistency that was more appropriate for pasta and didn’t change the flavor. It’s nice and cheesy but a little bland. If I try it again, I might add some diced chiles.
Kristin says
Sorry to hear it wasn’t a hit! Great idea on adding the cream of mushroom though, yum!!
Rachel says
Can you use cooked chicken and if so would recipe need to be altered?
Kristin says
You can, but I don’t know how the sauce would turn out as it kind of soaks into the chicken, so with the chicken being cooked, may not be as creamy. If you wanted to try it, you can spread the mixture on top of chicken and stick into oven for about 15 minutes. Possibly broil for a few minutes at the end to brown things up a bit!