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It’s the ninth day of the 12 days of Holiday Ideas event and it’s all about Potluck recipes! Today, I’m sharing a green bean bacon casserole with caramelized onions!

Green bean bacon casserole. Green bean casserole with bacon and caramelized onions. #greenbean #greenbeancasserole #sidedish #thanksgiving

Before I get to the Green Bean Bacon Casserole, I want to welcome you to the 5th annual 12 Days of Holiday Ideas event! This event is hosted by Shirley of Intelligent Domestications  and myself between Nov. 11th and December 6th. There will be hundreds of new ideas for the holidays that will be shared by our fellow blogging friends! To find the printable Holiday Calendars for the event and 50+ Best DIY Holiday Ideas, go –>> HERE. And don’t forget to check out the other delicious Christmas Potluck recipes from the other hosts and enter the fabulous giveaway below!

Green Bean Bacon Casserole

Alright, I have to apologize for not having more holiday potluck recipes. You see, it’s a family tradition to go to my sister-in-law’s house for Thanksgiving and brother-in-law’s house for Christmas. They cook the main dishes and everyone else will bring the sides, desserts, and drinks. This year, I’m making my Fruit and Nuts Lime Jello and a no-bake blueberry pie. Anyway, I thought it would be nice to bring a green bean bacon casserole too and wanted to share the recipe.

This recipe is a slight variation of the classic green bean casserole that uses canned green beans and cream of mushroom. I actually tried a fresh green bean vs. the classic canned casserole and everyone chose the classic canned?! I guess it’s hard to beat a classic, so I basically swapped out some of the fried onions with caramelized onions and added bacon to replace soy sauce. Of course, you can swap out the canned green beans with fresh cooked green beans if you prefer that too.  For me, I think the main component to stick with is the cream of mushroom soup.

Green Bean Bacon & Caramelized Onion Casserole Click to Tweet
Green Bean Bacon Casserole

Green Bean Bacon Casserole with Caramelized Onions

A twist on the classic green bean casserole has the addition of bacon and caramelized onions.


  • 2 - 14.5 oz. green beans, drained
  • 1 - 10.5 oz. cream of mushroom soup
  • 1/2 cup milk
  • 2 slices thick cut bacon, sliced into 1/4" strips or chopped.
  • 1/2 large sweet onion, sliced thin (about the size of a softball)
  • 1 T. unsalted butter
  • 1/8 tsp. pepper
  • 2 cups crispy fried onions


  1. Preheat oven to 350ºF.
  2. In a pan, melt butter over medium high heat (See notes). Add sliced onions and cook for about 5 minutes. Lower heat to medium and cook for another 15 - 20 minutes until the onions have a nice brown color. Adjust the heat as needed to not burn the onions. Set aside in a large bowl (To save washing an extra dish, add everything directly into the baking dish to mix).
  3. In the same pan, cook bacon until just crispy. Drain and add to the bowl with the caramelized onions.
  4. To the bowl with the bacon and onions, add the green beans, cream of mushroom, and milk. Mix everything together to blend all the ingredients.
  5. Pour mix into a 8" x 8" baking dish. Place in oven and bake for 20 minutes. Top with 2 cups of fried onions. Bake another 5 minutes. Serve warm.


  • If you want to make use of the bacon oil, fry the bacon first and remove from pan. Add in the sliced onions and add butter to caramelize.
  • Use 1 1/4 to 1 1/2 lbs of fresh green beans in place of canned green beans. Trim and boil till fork tender.
  • Stick to 2 cups of crispy fried onions as adding more will make the casserole too salty. If you really love onion flavor, add a whole caramelized onion instead and increase the butter to 2T. Increase the fried onion topping by 1/4 cup.

Did you make this recipe?

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For more Christmas Potluck recipes, make sure to check out the link-up below and don’t forget to enter the giveaway!

Christmas Potluck Recipes

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  1. That’s interesting that everyone preferred the canned green beans. My sister always makes this for our gatherings too with the canned beans and cream of mushroom soup. Pinned