Gluten Free Onion Rings & Green Bean Casserole

Gluten Free Onion Rings & Green Bean Casserole

I get lots of recipe questions throughout the year, but never more than in the lead-up to Thanksgiving. One question that comes up often is, “How do I make gluten free onion rings for my Grandma’s Green Bean Casserole??!” And while we’re at it, “How do I make gluten free Green Bean Casserole?!” Or even better: “How do I make it gluten free AND dairy free?!”

For heaven’s sake, please don’t give up on favorites like green bean casserole at Thanksgiving. I have gluten free and yes, dairy free recipes for all your traditional family recipes like this one, just search my blog and I’ll bet you’ll find it: cheesecake, pumpkin pie, flaky pie crust, cinnamon rolls, stuffing, sweet potato casserole, pecan pie … the list goes on of all the things you CAN make gluten free and even dairy free! And for other recipes like your grandma’s gravy, just use my gfJules™ Flour in place of regular flour — easy peasy.

Gluten Free Green Bean Casserole wide CU

So settle in and start searching for all the things you’re going to make this year, starting with this easy recipe for gluten free green bean casserole with homemade onion rings. My version is crispy and light and never greasy because it’s baked! Sound like a winner? It is!

Gluten free onion rings and green bean casserole are two traditional favorite must-haves for the Thanksgiving table. These easy recipes make it possible!

gluten free green bean casserole with fried onion rings

While this gluten free green bean casserole recipe is super simple, feel free to use your favorite family recipe instead. Just sub in my gfJules ™ All Purpose Gluten Free Flour for any flour called for in the recipe and be sure to use only gluten free soups and other ingredients.

Happy baking!

(PS the beautiful “gluten free” wood cutting board pictured  is from Words With Boards®)

gluten free green bean casserole


Gluten Free Onion Rings & Green Bean Casserole

  • Author:
  • Prep Time: 15 minutes
  • Cook Time: 55 minutes
  • Total Time: 1 hour 10 minutes


Green Bean Casserole

“Fried” Gluten Free Onion Rings


Gluten Free Onion Ring process

To make the “fried” onions, preheat oven to 375° F. Line a baking sheet with foil and spray well with cooking spray. Set aside.

If your sliced onions aren’t very wet, dip in water or milk or spray with oil. Combine the sliced onions and dry ingredients in a large bowl, tossing until totally coated with flour. Transfer onto baking sheet and separate the onion ring slices as much as possible.

making gluten free onion rings

Bake for 15-20 minutes, tossing one or two times while cooking to a golden brown.

Remove to cool while making your casserole. If the onions aren’t browning enough, broil briefly or toss lightly in oil in a skillet before topping casserole.

gluten free onion rings

Once cooled, break apart into smaller pieces for sprinkling on top of the casserole.

green beans washed

To make the casserole, increase oven temperature to 400° F. If using fresh beans, boil in lightly salted water for 5 minutes, then rinse with cold water and drain. If using canned beans, rinse and set aside.


diced mushrooms

In a large saucepan, melt the butter and toss in sliced mushrooms and pepper. Stir over medium heat for 5 minutes, then add spices and flour, stirring to coat. Cook an additional minute then add the sour cream and soup and lower the heat to medium-low.

gluten free roux

Cook while the mixture thickens, approximately 5-8 minutes more. Remove from heat and stir in half of the fried onions and all of the drained beans. Pour mixture into a large casserole and cook for 15 minutes, or until bubbly (+ 15 minutes longer if using fresh beans, or until desired tenderness).

Sprinkle the remaining onions on top and bake for an additional 5 minutes. Serve warm.

gluten free Onion Rings and Green Bean Casserole - gfJules



Gluten Free Green Bean casserole with homemade gluten free onion rings

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22 thoughts on “Gluten Free Onion Rings & Green Bean Casserole

  1. Jules – Can I just use a store bought cream of mushroom soup (like Pacific Foods) or do I need to add the mushrooms, flour, sour cream, etc., to get the recipe to come out like “regular”?

    • Hi Pam, I use both the soup and the flour, sour cream etc. You can certainly skip the extra mushrooms, but I really like the consistency of the casserole with more than just soup.

  2. I saw Gluten Free Fried Onions for green bean casserole at Aldi’s and our local grocery store, Giant, this week. Those not having luck with the onions can pick up a can and still make green bean casserole.

  3. I wish I had read the comments first before trying. The flour didn’t stick to most of my onion rings despite them being moist (the flour did stick to my fingers lol) and so mine didn’t turn out very well. I wound up throwing the batch away. I’ll try again another time and use the milk trick. Would butter spray (like Pam) work too as an adhesive?

    • Hi JB – sorry the flour didn’t stick to the onions as well as it did your hands! :) You can try anything like water or milk or oil, so spray Pam *(no flour in the Pam!) could help.

    • Hi Beth – I hope you get to try it! As for the frozen beans, yes, I would recommend thawing them and perhaps even blanching before using them. They would probably be ok just with the thaw, but blanch if you want them to be nice and soft in the casserole. Enjoy!

  4. I make gluten free cream of *** soup for.casseroles with Knorr concentrated broth combined with 1 1/2 C water. Wisk 2 T cornstarch with a small can of evaporated milk. Bring the broth to a boil. Stir in the milk stirring until thickened and smooth.

    • Hi WagnerJB, the onions are moist enough to cause the flour to stick, but if you find that they are too dry, you can always wet the rings in milk or water first. Enjoy!

  5. Sorry to bother you…I now read that Imagine Foods has a gluten free, dairy free mushroom soup. Thanks for all your help – this sounds delicious!

  6. I am thrilled to find a recipe for gf onion rings! I have missed green bean casserole very much, not just because of no gy onion rings, but because I don’t know how to make gf mushroom soup. Do you have a recipe for gf mushroom soup? I hope I haven’t missed it!

    • Hi Mary Margaret, I haven’t published a recipe for cream of mushroom soup, so you haven’t missed it! If you search the internet and find one that sounds good though, just use my Jules flour in place of the wheat flour they use for the roux – works great! OR, you could just buy one of the brands I have listed in the intro as gluten-free soups for the casserole. Enjoy the recipe!!!

  7. I was wondering if you have a favorite cream of mushroom soup that you can recommend? Would this be condensed? Thanks for a great sounding recipe, as usual!

    • Hi Jamie – in the intro, I list 3 good brands to try. You can probably only easily find one or two of those, so grab them when you can and see which you like best! Enjoy!

  8. Thank you! Green bean casserole is always a staple at my family’s thanksgiving dinner but this is my first year being gluten-free :( I was afraid I wouldn’t be able to have one of my favorite thanksgiving dishes!