Green Bean Casserole – Gluten Free, Vegan

This Gluten Free & Vegan Green Bean Casserole tastes amazing! It’s made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws!

This Gluten Free & Vegan Green Bean Casserole tastes amazing! It's made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws! #glutenfree #vegan #dairyfree #greenbeancasserole #thanksgiving #sides
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Green Bean Casserole has always been one of my very favorite holiday dishes.  Honestly, it’s one of my favorite side dishes regardless of the time of year.  

There is just something magical about the cream of mushroom soup, green bean, and onion straw flavor combination.  It’s also such an easy dish to put together which is always a plus! 

Before I had food allergies, green bean casserole consisted of two cans of cream of mushroom soup, 3 cans of green beans, and a box of onion straws.  

Super easy, but the canned soup is full of some not so great ingredients, including dairy which I’m allergic to.  

So I knew when I wanted to make this for Thanksgiving last year I was going to make everything from scratch.  

I already had a delicious recipe for mushroom gravy that I knew would work perfect to replace the soup and it turns out onion straws are super easy to make homemade and gluten free as well. 

This Gluten Free & Vegan Green Bean Casserole tastes amazing! It's made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws! #glutenfree #vegan #dairyfree #greenbeancasserole #thanksgiving #sides

I think I was probably most excited about the onion straws for this dish.  We used to eat them on everything and really missed having them.  

I found it’s easiest to use my vegetable spiralizer to get the onions cut into the perfect shape for onion straws, but you can also hand cut them if you don’t have a spiralizer. 

Below is the spiralizer I have and absolutely LOVE and use for many different recipes.

Once they are cut, you just toss them in dairy free milk, gluten free all-purpose flour, and then fry them up.  I typically fry them in olive oil to make them a little healthier. 

So after you make the mushroom gravy, you mix in the green beans and bake in a casserole dish for 20-25 minutes.  

Then top with the onion straws right before serving so they remain crispy.  Super easy for a delicious homemade dish and in my opinion SO much yummier than using the processed soup and onion straws.  

What are some of your favorite meals to make homemade?  I can’t wait to hear about them and hope you love this gluten free and vegan Green Bean Casserole as much as my family does! 

GLUTEN FREE GREEN BEAN CASSEROLE RECIPE INGREDIENTS:

To make this gluten free and vegan green bean casserole, you will need:

  • 14.5 oz cans cut green beans: drained

For the vegan Mushroom Gravy:

  • Olive oil
  • Mushrooms: chopped
  • Vegan butter: I use “Earth Balance vegan buttery sticks”
  • Cornstarch: brown rice flour can also be used
  • Dairy free milk: I use “So Delicious unsweetened Coconut Milk”
  • Seasoning: Paprika, Salt, Pepper

For the gluten free Onion Straws:

  • Onions: I typically use yellow onions for this recipe, but red or white onions will work as well
  • Gluten free all-purpose flour: I use “Better Batter
  • Dairy free milk of choice: I use “So Delicious Unsweetened Coconut Milk”
  • Salt
  • Pepper
  • Oil for frying: I like to use olive oil, but vegetable oil will work well too
This Gluten Free & Vegan Green Bean Casserole tastes amazing! It's made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws! #glutenfree #vegan #dairyfree #greenbeancasserole #thanksgiving #sides

HOW TO MAKE GLUTEN FREE AND VEGAN GREEN BEAN CASSEROLE:

To make the vegan mushroom gravy:

  1. Cook Mushrooms: Add 1 tbsp of olive oil to a sauce pan and heat over medium-high heat. Add the chopped mushrooms to the pan and saute for about 5 minutes or until the mushrooms are soft.
  2. Make a Roux: Lower the heat and add the butter stirring until melted. Add the flour and whisk until a paste is formed.
  3. Add Milk and Seasoning: Add the milk and whisk well to combine. Add the paprika, salt, and pepper.
  4. Simmer: 10 minutes or until the gravy thickens.

To make the gluten free onion straws:

  1. Prepare Onions, Flour, and Dairy Free Milk: Cut onion into thin strips (or use a spiralizer).  Add gluten free flour to a large bowl.  Mix in salt and pepper.  Add dairy free milk to another large bowl.
  2. Coat Onions in Dairy Free Milk and Flour: Dip onions in dairy free milk and then toss in the gluten free flour to evenly coat.  
  3. Heat Oil: Heat olive oil on medium-high heat in a large pan.  You will need around 1 1/2 inches of oil in the pan to cover the onions completely when frying.
  4. Fry Onions: Once the oil is hot, add onions to the pan and fry for 4-5 minutes until crispy.  Use a large strainer spoon to remove the onions from the hot oil.  Place onions on a plate with paper towels to soak up any excess oil.  Continue this process until all onions are fried.

To assemble the gluten free vegan Green Bean Casserole:

  1. Preheat oven: 350°F.
  2. Mix Green Beans and Gravy: Mix together green beans and mushroom gravy and pour into a 9×13 casserole dish.
  3. Bake: 20-25 minutes until heated through.
  4. Top with Onion Straws: Right before serving, top with onion straws.
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This Gluten Free & Vegan Green Bean Casserole tastes amazing! It's made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws! #glutenfree #vegan #dairyfree #greenbeancasserole #thanksgiving #sides

♥ Don’t forget to rate this recipe and leave a comment below if you give this recipe a try! ♥

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This Gluten Free & Vegan Green Bean Casserole tastes amazing! It's made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws! #glutenfree #vegan #dairyfree #greenbeancasserole #thanksgiving #sides

Green Bean Casserole – Gluten Free & Vegan

  • Author: Morgan | Just What We Eat
  • Prep Time: 20 min
  • Cook Time: 20 min
  • Total Time: 40 min
  • Yield: 8 Servings 1x

Description

This Gluten Free & Vegan Green Bean Casserole tastes amazing! It’s made with homemade mushroom gravy mixed with green beans and topped with homemade onion straws!


Ingredients

Scale
  • 3 14.5 oz cans cut green beans, drained

For the Mushroom Gravy

  • 1 tbsp olive oil
  • 1 cup chopped mushrooms
  • 3 tbsp vegan butter (I use “Earth Balance vegan buttery sticks”)
  • 1/4 cup cornstarch (or brown rice flour)
  • 2 cups dairy free milk (I use “So Delicious unsweetened Coconut Milk”)
  • 1 tsp paprika
  • 1 tsp salt
  • 1/4 tsp pepper

For the Onion Straws

  • 2 large onions
  • 1 cup gluten free all-purpose flour (I use “Better Batter“)
  • 1/2 cup dairy free milk of choice (I use “So Delicious Unsweetened Coconut Milk”)
  • 1/2 tsp salt
  • 1/4 tsp pepper
  • oil for frying (I like to use olive oil, but vegetable oil will work well too)

Instructions

To Make the Mushroom Gravy

  1. Add 1 tbsp of olive oil to a sauce pan and heat over medium-high heat.
  2. Add the chopped mushrooms to the pan and saute for about 5 minutes or until the mushrooms are soft.
  3. Lower the heat and add the butter stirring until melted.
  4. Add the flour and whisk until a paste is formed.
  5. Add the milk and whisk well to combine.
  6. Add the paprika, salt, and pepper.
  7. Simmer for about 10 minutes or until the gravy thickens.

To Make the Onion Straws

  1. Cut onion into thin strips (or use a spiralizer).  Add gluten free flour to a large bowl.  Mix in salt and pepper.  Add dairy free milk to another large bowl.
  2. Dip onions in dairy free milk and then toss in the gluten free flour to evenly coat.  
  3. Heat olive oil on medium-high heat in a large pan.  You will need around 1 1/2 inches of oil in the pan to cover the onions completely when frying.
  4. Once the oil is hot, add onions to the pan and fry for 4-5 minutes until crispy.  Use a large strainer spoon to remove the onions from the hot oil.  Place onions on a plate with paper towels to soak up any excess oil.  Continue this process until all onions are fried.

To assemble the Green Bean Casserole

  1. Preheat oven to 350°F.
  2. Mix together green beans and mushroom gravy and pour into a 9×13 casserole dish.
  3. Bake for 20-25 minutes until heated through.
  4. Right before serving, top with onion straws.

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