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Scoop of green bean casserole lifted from glass baking dish on wooden spoon.
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5 from 2 votes

Green Bean Casserole (Gluten Free)

This gluten free Green Bean Casserole Thanksgiving side dish recipe is made from scratch with fresh green beans and cream of mushroom soup!
Prep Time10 minutes
Cook Time50 minutes
Total Time1 hour
Course: Side Dish
Cuisine: American
Diet: Gluten Free
Keyword: green bean casserole from scratch, gluten free green bean casserole, how to make green bean casserole
Servings: 10
Calories: 133kcal

Ingredients

Instructions

  • Mince 2 shallots and 4 cloves of garlic.
  • Wash and trim 2 lbs. of fresh green beans. Cut the beans into halves or thirds. 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.
  • After the beans are all cooled in the ice water place them in a strainer and drain them. Once drained, place the beans in a 9×13 inch casserole dish.
  • Cut 1 8 oz. package of white button mushrooms into slices.
  • Heat a skillet to medium and add 1 Tbsp. of butter. Once the butter is melted add the garlic and shallots. Sauté for 2-3 minutes, stirring often.
  • Add the sliced mushrooms along with ⅛ tsp. each of kosher salt and pepper. Sauté the mushrooms for 8 minutes, stirring often. After the mushrooms are sautéed add them to the green beans in the casserole dish.

For The Cream Of Mushroom Soup:

  • Cut another 8 oz. package of button mushrooms into small pieces. You want these mushrooms to be cut smaller than the mushrooms you sliced earlier.
  • Once the mushrooms are chopped heat another Tbsp. of butter in a skillet. Add the chopped mushrooms along with ⅛ tsp. each of kosher salt and pepper. Sauté for 5-6 minutes, stirring often. When the mushrooms have cooked down pour them into a small bowl and set aside.
  • Reduce heat to medium-low and add 2 more Tbsp. of butter to the skillet. Once the butter is melted add 3 Tbsp. of gluten free flour blend (or regular AP flour if not gluten free). Stir the flour into the melted butter, creating a roux.
  • Slowly add 1 cup of chicken broth to the skillet and stir constantly using a whisk. The mixture will look chunky at this point. Add ½ cup of evaporated milk and continue to stir.
  • Add ½ tsp. garlic powder, 1 tsp. Worcestershire sauce, and ¼ tsp. salt and pepper to the skillet. Continue to stir until the mixture becomes creamy and thickened.

Assemble and Bake:

  • Once the homemade cream of mushroom soup is ready, pour it into the casserole dish along with the green beans and mushrooms. Stir all of the ingredients together until completely coated.
  • Place the uncovered baking dish into an oven that has been heated to 375 degrees. Bake for 25 minutes.
  • After 25 minutes, top the casserole with 1 cup of gluten free French fried onions or regular French Fried Onions if not gluten free.
    OR 1 cup of gluten free Panko breadcrumbs that have been mixed with 2 Tbsp. of melted butter. Spread the onions or breadcrumbs over the top and bake for an additional 10 minutes.
  • Remove the casserole when it is hot and bubbly and allow to cool slightly before serving.

Notes

Make it ahead of time: Make this a make ahead green bean casserole by preparing it ahead of time. Simply prepare the casserole as directed and then store to bake when ready to serve.
Enjoy the leftovers: This casserole can be kept in the fridge in an airtight container for 4-5 days after baking.

Nutrition

Calories: 133kcal | Carbohydrates: 12g | Protein: 4g | Fat: 9g | Saturated Fat: 5g | Cholesterol: 23mg | Sodium: 191mg | Potassium: 276mg | Fiber: 3g | Sugar: 5g | Vitamin A: 878IU | Vitamin C: 12mg | Calcium: 77mg | Iron: 1mg