Who would think that an onion casserole would be everyone's favorite side dish? ME! This Sweet and Cheesy Onion Casserole will soon become your signature dish! You're welcome!
*Disclaimer - This recipe was originally published in 2010. I'm working hard to update all my older recipes with recipe cards, new photos, and additional recipe information. But, getting to all of them will take time. Please bear with me. In the meantime let me assure you that this recipe is still a winner and one I'm sure you'll be well pleased with when you make it at home.
If you're an onion lover, this sweet and cheesy onion casserole is for you!
This dish is one that always receives compliments, even from people who claim they don't enjoy onions.
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It is a perfect accompaniment to any meat and has been gracing our holiday table for many, many years now. Cheesy and comforting. What more can you ask for?
I wish I had additional pictures to share of this heartwarming classic from around our holiday table but unfortunately, I don't.
We always dig in too fast, and before you know it it's just a loving distant memory. It's certainly a dish we'll dream sweet dreams of while napping on the couch, after the large holiday feast.
Having said that, don't save this recipe just for the holidays. It goes well during the summer with a big steak off the grill too. Oh, hey now. Doesn't that sound tasty?
Printable Recipe Card
SWEET AND CHEESY ONION CASSEROLE
Equipment
- 9 x 13 Ceramic Casserole Dish
- cheese grater optional
- kitchen scale optional
- nutmeg grater optional
Ingredients
- 3 tablespoons butter
- 2 tablespoons olive oil
- 8-9 large sweet onions medium diced
- 1 ½ teaspoons kosher salt
- ½ teaspoon black pepper
- 2 teaspoons garlic powder
- 2 tablespoons granulated sugar
- ⅛ teaspoon freshly grated nutmeg
- 3 tablespoons all-purpose flour plus more if needed
- 8 ounces Monterey Jack cheese shredded
- 8 ounces Sharp cheddar cheese shredded
- 1 cup panko bread crumbs
- ¼ cup melted butter
Instructions
- Preheat the oven to 350°F (175℃)
- Add the butter and olive to a large Dutch oven over medium/high heat to melt.
- Add in the onions, salt, pepper, garlic powder, and nutmeg. Cook, stirring occasionally until the onions become soft and slightly translucent (about 10-15 minutes).
- Stir in the granulated sugar and allow it to melt (about 2-3 minutes).
- Stir in the flour. Stir and cook for an additional few minutes. The onions should become thick and pasty at this point. If not, add a little bit more flour.
- Remove from the heat and stir in the grated cheeses until melted.
- Carefully spoon the onion cheese mixture into a 5-6 quart casserole dish that has been lightly sprayed with cooking spray.
- Cover the top of the onions with the panko bread crumbs and drizzle the top with the melted butter.
- Bake (uncovered) in a preheated oven for 35-40 minutes.
- Remove from the oven and allow it to cool about 10 minutes before serving.
Notes
Nutrition
Should you have any questions or comments regarding anything you've seen on my site, please don't hesitate to reach out to contact me. It is always my distinct pleasure to get back with you just as soon as I possibly can!
Thank you so much for visiting me today in my Kudos Kitchen. I hope you found something you'll love and that you will come back and visit me often. Please know that there is always room for you around my kitchen table!
Until we eat again, I hope you have a delicious day!
Betsy @ Desserts Required says
This has my name ALL over it! Pinning for later!
Claire says
this is in my oven right now! so excited. thanks for the recipe. onions + cheese = my two favorite things. yum!
kat says
Wow, that looks amazing. I bet it would be great with a steak
Elle says
Oh, would love to dig in!
Paula says
O.K., I'll confess that I don't eat onions save for some finely chopped shallots in a salad but your casserole does look warm and inviting. I'm betting your tile will look just as lovely.
RJ Flamingo says
I'm going to make a confession here: I only order patty melt sandwiches at restaurants and diners for one reason - the cooked sweet onions and cheese that go on top. You have just given me a VAT of that awesomeness!
Megan says
Ohhh my! This does look good and so comforting! I cant wait to see the tile!