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Just 10 minutes of prep time and you have a delicious creamy concoction of chicken, celery, and cheese topped with crispy fried onions!
If you think you don’t like casseroles, then you probably just haven’t tried the right one. We have several favorite chicken casseroles, like a chicken crescent roll casserole, chicken and broccoli casserole, and this French onion chicken casserole!
A casserole for even the pickiest eaters
I really don’t like being a picky eater, but I am. Yes, it’s true… I can’t stand onions. They gross me out. BUT, having said that I actually like french fried onions… maybe the fact they’re breaded and fried makes them okay. 😉
This next recipe I’m sharing is topped off with those delicious french fried onions and filled with all sorts of goodness like chicken, cheese, sour cream, mayo and almonds. It is DELICIOUS!
The best thing about this French Onion Chicken Casserole is that it takes little prep time. Literally, it takes minutes to throw together if your chicken is already made. You can buy cooked, chopped chicken, but I like to bake my chicken earlier in the morning.
10 minute prep
Although it takes awhile to bake, it really only takes about 5 minutes of prep work. Add that with the 5 minutes it takes to put this casserole together and you’re looking at about 10 minutes of work.
PREP. Preheat oven to 350 and coat a 9×13 baking dish with cooking spray.
BAKE. In large bowl, stir celery, cheese, sour cream, mayo and cream of chicken. Add chicken and almonds. Spoon into dish. Bake uncovered for 30 minutes.
TOPPING. Sprinkle fried onion and cook another 5 minutes. Let stand 5-10 minutes. Enjoy!
Tips + variations
Here are a few ideas to tweak the recipe to make it a little more healthy:
- Use a low fat Mayo and sour cream
- Substitute all or a portion of the Mayonnaise with a low fat Greek yogurt
- Add veggies—sliced carrots, peas, broccoli florets, and shredded zucchini are all good choices
- Make it even more keto friendly and sprinkle cooked chopped bacon bits on top
- Serve over white or brown rice, pasta, cauliflower rice, or zucchini pasta
Serve French onion chicken casserole with any of the following:
Storing info
To make ahead of time, assemble and cover with plastic wrap and store in the fridge for a day. If freezing, then add another layer of aluminum foil and freeze for 2-3 months. Thaw overnight in the fridge before baking. Do not add the fried onions until the last 5 minutes of baking time.
To STORE, divide the leftovers into single serve portions. Store the portions in airtight containers and keep in the fridge for days. To reheat quickly, use the microwave. If you have a little more time reheat in the oven.
The fried onions may become mushy as it sits in the fridge. To crisp them back up simply stick the casserole under the broiler. Watch carefully as they can go from soggy to burnt really quickly.
For more great chicken casseroles, check out:
- One Pan Chicken Parmesan
- Chicken and Green Bean Casserole
- Parmesan Chicken Bake
- Chicken Tetrazzini
- Chicken Cordon Bleu Casserole
- Chicken Stuffing Casserole
French Onion Chicken Casserole Recipe
Ingredients
- 3 cups cooked chicken chopped
- 1 cup celery chopped (or french style green beans)
- 1 cup cheddar cheese shredded
- 1 cup sour cream
- 1/2 cup mayo
- 1 can cream of chicken
- 1/2 cup slivered almonds
- 6 oz French’s fried onions
Instructions
- Preheat oven to 350 and coat a 9×13 baking dish with cooking spray.
- In a large bowl, stir celery, cheese, sour cream, mayo and cream of chicken. Add chicken and almonds. Spoon into dish.
- Bake uncovered for 30 minutes. Sprinkle fried onion and cook another 5 minutes. Let stand 5-10 minutes. Enjoy!
Video
Nutrition
Nutrition information is automatically calculated, so should only be used as an approximation.
Making something new Especially such recipes it is really hard but I can do it. Thank you for Recipe
You can do it 🙂 Thank you for stopping by and let me know how they turn out!
Can you use miracle whip in place of regular mayo?
I haven’t tried, but if that’s what you like, doesn’t hurt to try! Let me know what you think 🙂 Thank you!
Miracle Whip has sugar in it.
I wouldn’t suggest using it.
I have made this several times, each time tweaking it just a little for our family’s liking 🙂 The 1st time I followed the recipe exactly as is, it was very soupy! I am in weight watchers so I changed up a few things to make it a little healthier. The few changes I used were:
green beans instead of celery (pure preference)
Cut out the mayo completely (honestly couldn’t even tell)
Used Greek yogurt in place of sour cream, dont use quite a full 1/2 cup
So for whoever had negative comments, the way I made it was very healthy, contained chicken, Greek yogurt, green beans, cheese and 1 can of soup, most of which are healthy items 🙂
Thank you Lil Luna for the great recipe!
Oh, thank you so much for sharing that!!! I’m so glad you found a healthier alternative 🙂
Thanks for the great dinner idea. To make it a little healthier I used 1 and 1/2 cup lite sour cream and 1/2 cup lite cream cheese instead of mayo. It still came out so creamy. This one’s a keeper, thanks!
Thanks for sharing those healthier tips!! I am so happy to hear that you liked it!
What would you recommend serving with this? Sounds delicious.
You can serve a vegetable, like zucchini or asparagus, a roll..maybe some chicken. Hope those help! Thank you!!
I made this recipe with the french style green beans and won for best side dish at my work. I have so many co-workers that are asking for the recipe. 🙂
Yay..that’s awesome!!! I’m glad it was a hit. Thanks for sharing!
I just made this and my family absolutely loved it! Served tomato cucumber salad and Hawiian rolls on the side. So easy to make and delicious. Thanks so much!
That makes me so happy! Thank you for sharing!
I’ve made this twice now. The first time had too much mayo. I cut it in half and substituted more sour cream. Much better the second time! The men in my house really like it.
I’m so glad they liked it!! I’m glad you found a way to substitute the mayo. Thank you so much for sharing!!
This was amazing! Made long grain rice and put this over the rice and it was fabulous! And super easy! 5???? In my book.
Great!!! Thanks so much for letting me know! I’m glad it was a hit 🙂
I bulked this up with 2 cups cooked pasta and 8 strips thick cooked bacon, chopped up. It is my family’s go to comfort food!
Sounds amazing!! Thank you for sharing..I’ll have to try that!
I added bacon and bulked it up with 2 cups cooked pasta. It has become my family’s go to comfort food!
This one is a keeper! Husband loved it! I don’t understand the comments from the folks who said theirs was soggy. Mine came out perfect. I’m going to stash some of these in the freezer, and add the onions at the end. BTW, I added some of the french fried onions into the actual casserole. Yum!
That’s so good to hear! Thank you so much for sharing!!! I’m glad you liked it!!
Anyone ever try this in the crockpot? I love recipes that I can through in in the morning and this seems like it would work. Just through everything in except thr onions until the last 30 minutes or so?
I haven’t, but I would love to know, too!!