The Cozy Cookbook is here! 
This mouth-watering mashed potato casserole is loaded with creamy mashed potatoes and topped with Crispy Chicken Tenders, corn, cheddar cheese, and a drizzle of brown gravy! It’s easy to make ahead of time and bake later for a quick family dinner!
Love casserole recipes? Be sure to try my Twice Baked Potato Casserole recipe next!
Mashed Potato Casserole
Sunday meal prep has been my jam lately, and I’m so thrilled to be growing my collection of casseroles that are easy to throw together and can made ahead of time.
Not to mention, if you find yourself with some leftover mashed potatoes, then this dinner is a no-brainer.
Ingredients
- Mashed Potatoes- My homemade recipe is portioned perfectly for this recipe.
- Corn– Frozen or drained from a can
- Cheddar Cheese– Shredded from a block at home for best results
- Chicken Tenders- It’s GREAT with my homemade chicken tenders but you can also use frozen. My popcorn chicken is perfect as well!
- Brown Gravy- My homemade brown gravy is SO easy and takes 10 minutes! (But a packet works too.)
Make it from Scratch!
- Homemade Mashed Potatoes
- Fried Chicken Tenders
- Easy Brown Gravy
How to Make the Best Mashed Potatoes
Everything from the type of potato you use, how you boil the potatoes, and even to how you mash them up is important. Be sure to check out my mashed potato recipe for all the info!
Vegetable Variations:
- Frozen peas, carrots, corn, and green beans make excellent vegetable options in this casserole!
Make-Ahead Method:
Prep Work:
- Prepare homemade potatoes, chicken tenders, and brown gravy. Store each in a separate airtight container for 1-2 days ahead.
- Grate the cheese ahead of time and keep it in a small storage bag in the fridge.
When Ready to Bake:
- Heat up the potatoes. (On stove top or in the microwave)
- Top with frozen corn, cheese, and chicken.
- Bake for 15 minutes.
- Reheat the gravy in the microwave or stove top.
- Drizzle the gravy over the casserole and serve!
Storing Leftovers
- Leftovers can be stored in an airtight container in the fridge and are best if used within 3 days.
- You can reheat in the microwave or in an oven at 350°.
- You can also freeze leftovers in an airtight container, it’s best if used within 3 months.
Try These Next!
-
- Creamy Chicken Pasta
-
- Ranch Pork Chops
-
- Beef and Broccoli Ramen
-
- White Cheddar Chicken Pasta
-
- Fried Shrimp
-
- Lemon Pepper Chicken
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Mashed Potato Casserole with Crispy Chicken
Ingredients
For Casserole:
- 5-6 cups mashed potatoes, my homemade version is portioned for this recipe
- 1 cup corn
- 1 cup cheddar cheese, freshly grated
- 8 Chicken Tenders, I prefer my homemade recipe but frozen may be used
- Brown Gravy, you can also use a packet
Instructions
- Preheat the oven to 400 degrees Fahrenheit.
- If using frozen chicken tenders, let them sit at room temp for about 5 minutes if you prefer to slice them first, this allows them to soften.
- Spread the potatoes on the bottom of a 9 x 13 casserole dish.
- Note: If your mashed potatoes are cold, warm them first.
- Top with corn and cheese.
- Carefully slice the chicken strips into pieces of desired size and top the casserole dish with them.
- Bake uncovered for 20 minutes if using frozen chicken tenders and 15 minutes for homemade.
- Prepare the gravy on the stove top while the casserole finishes baking.
- Drizzle desired amount of gravy over the casserole dish and serve!
Quick, easy and delicious!
That’s so great to hear Tracy, thanks so much for the review!💖
Great casserole! Hubby and kids loved it. Definitely going into the rotation. I cheated and used Tyson chicken strips and made 3 envelopes gravy. I also doubled the corn and cheese.
I’m so happy that you loved it Sonia, it’s always great when the whole family loves it! 🙂
Just a note that the 20 min baking time for frozen chicken tenders is if they are pre-cooked. I used uncooked frozen chicken tenders and needed to bake it longer.
We have made this several times and different ways every time! Frozen chicken, homemade chicken, packet gravy, KFC gravy, homemade potatoes, premade Bob Evans potatoes, it’s DELICIOUS every time!!!!!!!!
I’m so happy that you have enjoyed it no matter how you’ve made it Britt!! Wahooo!! Thank you so much for taking the time to leave a review, I really appreciate it! 🙂 -Stephanie
Should I spray my pan first?
It won’t hurt, but if your potatoes are buttery, it’s not necessary.
Delicious! Added sauteed onions and baby Bella’s.
Yummm, nice job Linda! Thanks so much for taking the time to leave a review!💗
We love this recipe. Thank you for sharing. So easy and delicious.
Hi Melissa! I am so happy to hear that you love this casserole, it’s always a hit in our house too! Thank you so much for taking the time to leave a review, I really appreciate it! -Stephanie
It was excellent. I made my own chicken nuggets, they were crispy as noted! I made my own gravy and it was delicious as well!
I love that you made your own nuggets and gravy, nice work!🙌 Thanks so much for taking the time to comment and leave a review💗
This may sound too easy but believe me it’s the bomb.
Yayy! Thanks so much Deb, I appreciate the great comments and review!😍
My husband asks me to make this multiple times a week. We both love it. It’s so comforting and delicious.
That’s so great to hear Danielle! My husband and daughter love this one. Definitely comforting! Thanks so much for the great review!❤️