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Scoop of green bean casserole lifted from casserole dish with metal spoon.
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5 from 2 votes

Gluten Free Green Bean Casserole

This Gluten Free Green Bean Casserole is made using fresh green beans and homemade cream of mushroom soup. A perfect Thanksgiving side dish!
Prep Time20 minutes
Cook Time50 minutes
Total Time1 hour 10 minutes
Course: Side Dish
Cuisine: American
Diet: Gluten Free
Keyword: homemade green bean casserole, green bean casserole cream of mushroom soup, green bean casserole using fresh green beans,
Servings: 8
Calories: 210kcal

Equipment

Ingredients

Instructions

  • Mince 4 cloves of garlic and 2 shallots.
  • Wipe 2 8 oz. packages of white button mushrooms (or mushrooms of choice) clean with a damp towel. Remove the stems and discard.
  • Chop the mushrooms into small pieces, making sure they are all relatively the same size to ensure that they cook evenly.

For The Green Beans:

  • Wash and trim 2 lbs. of fresh green beans. Cut the green beans into halves or thirds (depending on your preference).
  • Bring a pot of water to a boil. Once the water is boiling, add the green beans and boil for 3 minutes. After 3 minutes, remove the beans with a slotted spoon or spider strainer and place them into a bowl of ice water.
  • Cool the green beans in the bowl of ice water and then place them in a strainer to drain them. Make sure to allow the blanched green beans to drain thoroughly.

For The Cream Of Mushroom Soup:

  • Place a skillet on the stove top and heat to medium. Once heated, add 2 Tbsp. of butter. Once the butter is melted, add the minced garlic and shallots to the skillet. Sauté for 4-5 minutes, stirring often.
  • Add the chopped mushrooms, along with ¼ tsp. each kosher salt and pepper. Sauté for 8-10 minutes, stirring occasionally.
    Remove the mushroom mixture from the skillet and set aside.
  • Return the skillet to the stove top and add another 2 Tbsp. of butter. Once melted, add 3 Tbsp. gluten free flour blend (or AP flour if not gluten free). Stir the butter and flour mixture for 1 minute, creating a roux.
  • Slowly add 1 scant cup of gluten free chicken broth and ½ cup of whole milk to the skillet. Cook over medium-low heat, stirring slowly with a whisk.
  • Continue to cook for 5-6 minutes, allowing the soup to thicken (it may look chunky at times).
  • Add ½ tsp. garlic powder, ¾ tsp. kosher salt, ½ tsp. pepper, and 1 tsp. Worcestershire sauce to the skillet. Whisk until combined and continue to cook the soup until it is thick and creamy (it should have the consistency of gravy).

Assemble and Bake:

  • Heat the oven to 375 degrees Fahrenheit.
  • Pour the blanched and drained green beans into a 9x13 inch casserole dish and spread evenly across the bottom.
  • Pour the cream of mushroom soup over the green beans and toss until they are completely coated in the soup mixture.
  • Place the casserole dish into the oven and bake (uncovered) for 30 minutes.
    After 30 minutes, remove the casserole dish and sprinkle 2 cups of gluten free French fried onions (or regular French fried onions if note gluten free) evenly over the top.
  • Return the casserole dish to the oven and bake for another 5 minutes. Remove the casserole dish and allow to cool for at least 5 minutes (this allows the cream of mushroom soup to thicken).

Notes

The cream of mushroom soup may take a few minutes to thicken. Make sure to keep an eye on it and stir occasionally with a whisk as it cooks. The soup may look chunky at times, but should become thick and creamy and have the consistency of gravy.
The cream of mushroom soup will appear 'soupy' at first, but should thicken up as the green bean casserole cools.
French fried onions are sometimes labeled 'Crispy Fried Onions' or 'Crispy Onions'. Make sure the brand used is gluten free if gluten is an issue for you.

Nutrition

Serving: 2cups | Calories: 210kcal | Carbohydrates: 20g | Protein: 3g | Fat: 14g | Saturated Fat: 7g | Polyunsaturated Fat: 0.4g | Monounsaturated Fat: 2g | Trans Fat: 0.2g | Cholesterol: 18mg | Sodium: 365mg | Potassium: 304mg | Fiber: 4g | Sugar: 5g | Vitamin A: 994IU | Vitamin C: 15mg | Calcium: 73mg | Iron: 2mg