Onion Casserole Recipe
Onion Casserole
Follow our easy, step-by-step, photo illustrated instructions to learn how to make this delicious Onion Casserole. Printable recipe included.
…
Our Onion Casserole is made with Vidalia Onions, but any sweet type of onion will work well.
…
…
This is another recipe that was sent to me by one of the subscribers to our Newsletter.
In her email, Karen C., said that she had been taking this dish to her church reunions and that now, folks were asking her if she could bring two or even three of them because they would disappear so fast.
Karen says she likes to make it with Vidalia Onions, but can’t always get them in Kentucky where she lives, so any good sweet onion will work as well.
Her recipe was very simple. It called for 3 large onions, 1 1/2 cups each of Swiss and Mozzarella Cheese and THREE cups of mayonnaise. Now, to me, that’s a LOT of mayonnaise. But, I decided to make it the way she suggested.
To be totally honest, the finished casserole was pretty much floating in oil when it came out of the oven. Was it because I used Duke’s Mayonnaise?
I asked her, and Karen said she uses Hellman’s brand. I don’t know if that would make a big difference or not. Karen did say that her’s wasn’t that oily, but it did have some oil in it when completed.
Not to be discouraged, I decided to bake it again. Only this time, I used ONE cup of my beloved Duke’s Mayonnaise. It came out much better in my opinion. It still had some oil, but then again, three cups of cheese will produce oil all by itself.
The taste of this Onion Casserole was very good. I liked it a lot. I hope you will too.
Looking around the Internets, the only recipes similar to this that used mayonnaise were called “dips” instead of casseroles. So, in that respect, this casserole is probably different from what you’ve tried or seen previously.
Vidalia Onions are only available for a short while each year, but again, you can use regular sweet onions with great results.
I do hope you’ll give the recipe a try, and I encourage you to use the printable version I’ve included below which uses just ONE cup of mayonnaise. You can always add a bit more if you think you need it once you start mixing the cheese’s and mayo together. You decide. Smile.
Ready to give it a try? Alright then, let’s head on out to the kitchen, and… Let’s Get Cooking!
…
Onion Casserole Recipe, you’ll need these ingredients.
Pre-shredded cheese has a powdery cornstarch substance on it to keep the cheese from sticking together in the package. It’s best if you grate your own cheese, like I will do with the Swiss Cheese. I couldn’t get a block of Mozzarella Cheese at the time, so had to resort to the pre-shredded variety.
…
Spray your baking dish, or lightly coat the inside with butter.
…
Slice the onions into rings, or half rings.
I cut mine in half rings thinking it might be easier to consume them. Just me. Totally your choice. Smile.
…
Place all the onions in your baking dish. Spread them out evenly.
…
Grate the cheese if needed.
…
Grab a mixing bowl and add the Swiss cheese.
…
Add the mozzarella cheese.
An 8 ounce package of shredded cheese contains two cups. Avoid the temptation to place more than 1 1/2 cups in the bowl. Extra cheese will mean extra oil in the finished casserole. Smile.
…
Add the cup of mayonnaise.
…
Stir until fully combined. Watch for large lumps, break them up as needed.
…
Spread the cheese over the onions.
…
Place in a oven pre-heated to 350F degrees. Let the casserole bake for about 30 to 40 minutes or until the top is golden brown and bubbly.
…
Remove from oven when golden brown and bubbly. Set on wire rack to cool.
You can’t see it in the photo, but this dish is bubbling hot. Smile.
If you try to eat this while it’s hot, be prepared for the oil that comes from the cheese and mayo. It’s better if you can let it cool for awhile. Just saying.
…
Enjoy!
Use a slotted spoon to serve this up.
Thanks again to Karen C. for sharing her recipe with us.
…

Onion Casserole Recipe
- Prep Time: 15 minutes
- Cook Time: 35 minutes
- Total Time: 50 minutes
- Yield: 6 - 8 servings 1x
- Category: Side Dishes
- Method: Bake
- Cuisine: American
Description
Delicious onion casserole great for family get together’s or church dinners. Use Vidalia onions if you can get them, but any sweet onion will work well.
Ingredients
3 large Vidalia (or sweet) Onions
1 1/2 cups shredded Swiss cheese
1 1/2 cups shredded Mozzarella cheese
1 cup Duke’s Mayonnaise
Instructions
Preheat oven to 350F degrees.
Spray a 9”x13” casserole dish with cooking spray. Set aside.
Slice onions into rings.
Layer the onion rings in the casserole dish.
In a large mixing bowl, add the Swiss cheese.
Add the mozzarella cheese.
Add the mayonnaise.
Mix the cheese and mayonnaise together until fully combined.
Spread cheese mixture over the onions.
Bake 30 – 40 minutes or until top is golden brown.
Enjoy!
Notes
The cheese and mayonnaise will produce a fair amount of oil once baked. Let it cool well before serving and use a slotted spoon so you can let it drain a bit before placing it on your plate.
Keywords: onion casserole, vidalia onion casserole, mayonnaise, swiss cheese, mozzarella cheese, southern recipes
Your Comments:
Have you tried our Onion Casserole? What did you think of it?
Share your memories of this great side dish with us. It will only take a minute or two for you to leave your comments in the section below.
Just remember, all comments are moderated. That just means that I personally read each and everyone before they are approved for viewing on our family friendly website. Thank you in advance for sharing.
Sign Up For Our Free Newsletter:
While you’re here, be sure to sign up for our totally FREE NEWSLETTER. I’ll send you an Email every once in awhile to remind you when I post a new recipe, or when anything else of importance is going on around Taste of Southern. It’s totally free, and super easy to sign up. And, should you ever decide that you are no longer interested, it’s even quicker to unsubscribe. How cool is that? I’ll be looking forward to seeing you add your name to our list. The signup box is below and you’ll also find one in the top right hand corner of each page. I hope you’ll do it today.
Be Blessed!!!
Steve
..
You might also like: Squash and Onion Recipe
Or, maybe this one: Liver and Onions Recipe
Perhaps this: Okra and Tomatoes Recipe
.
Category: Side Dishes
Onions, cheese,and Dukes mayo! What’s not to like!
Sounds delicious. Looking forward to trying it.
This recipe sounds so awesome!! Easy and delicious but do I dare make it. The older I get, the more onions bother me. You have heard “I love onions but they don’t like me” That is ME.
I am so glad that you are finally getting out of the house and enjoying yourself. Take it easy and enjoy yourself. Every day is a gift from God.
Hi Carolyn, Perhaps you could just make half the recipe to give it a try. That way, once you see how much you like it, you can’t jump in and eat a whole bunch of it. Smile. I understand the problem with onions though, so proceed with caution. I do hope you get to try it though. Thank you for being a subscriber to the Newsletter and for your kind words. I appreciate your visits and your support. I trust you’ll stop by again… real soon. Be Blessed!!! -Steve
Good Morning,
This looks amazing. My mother liked creamed pearl onions at Thanksgiving, I learned to eat them, but I think it was just the two of us that ate it. She is gone now, and I haven’t done the onions since then, but I really like baked Vidalia’s, sometimes I put one in the microwave with butter on the top and just zap it until its done, so I am going to definitely try this. The cheese will do the trick for my family, and I think they will be adventurous and give it a try. I made the tomato pie with mayo and cheese, and it was lovely. A big hit, so I think this will be too. Thanks for sharing, and I am so glad about Jan and you getting out and driving again. The park where you fish looks very inviting. Praying that you and Billy and Jan keep improving.
Hi Marilyn, I do hope you get to try the Onion Casserole. I know it’s not for everyone, but I enjoyed it and I think you will too since you like onions. Thank you also for trying the Tomato Pie, I’m glad you liked it. I’m thankful for your support and for having you as a subscriber to the Newsletter. We do appreciate your prayers, and Yes, it’s good to be back out a bit. I’ll pass your comment along to Billy and Jan. I do appreciate your visits. The door is always open so be sure to stop by any old time. Be Blessed!!! -Steve
My husband likes roasted onions when I get a big batch so I’m sure he’ll love this. I believe it will make a tasty side dish for our Thanksgiving meal.
Looking forward to how I can tweak the leftovers.
I look forward to your letter and recipes every week.
Hi Karen, What leftovers? Hopefully you will not have any. Smile. I do hope you get to try the Onion Casserole. Just go easy with the Mayonnaise and you should be good to go. Let me know how it turns out if you try it. Thank you for your visit today and for your comment. Thank you for being a subscriber to the Newsletter also. I appreciate your support. The door is always open, I hope you’ll stop by again… real soon. Be Blessed!!! -Steve