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Golden gluten free green bean casserole with crispy fried onions and breadcrumb topping in white baking dish

Creamy Gluten Free Green Bean Casserole from Scratch

A creamy, crispy, and comforting gluten free green bean casserole that brings everyone to the holiday table. Made with fresh green beans, a rich mushroom sauce, and a golden breadcrumb-onion topping, this inclusive twist on the classic delivers unbeatable flavor and texture.
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Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes
Servings: 8 servings
Course: Side Dish
Cuisine: American
Calories: 475
Ingredients Method Notes

Ingredients
  

  • 2 pounds fresh green beans trimmed
  • 3 cups gluten free cream of mushroom soup
  • Reserved mushrooms from soup preparation
  • 1½ cups coarse gluten free bread crumbs 180g
  • 4 tablespoons unsalted butter melted
  • 2 ounces finely grated Parmigiano-Reggiano cheese optional
  • 1½ cups gluten free crispy fried onions

Method
 

  1. Preheat oven to 375°F and grease a 9×13-inch baking dish.
  2. Bring salted water to a boil and blanch green beans for 3 minutes until bright green and tender-crisp. Drain and pat completely dry.
  3. In a large pot, fold green beans with cream of mushroom soup and ¾ of the Parmesan. Mix gently to coat without breaking the beans.
  4. Transfer to baking dish, top with reserved mushrooms and half of the remaining cheese.
  5. Combine gluten free breadcrumbs with melted butter until evenly coated. Sprinkle mixture over casserole, then top with remaining cheese.
  6. Bake 15 minutes until golden and bubbling. Remove from oven and top immediately with crispy fried onions. Press gently to adhere and serve warm.

Notes

Always pat green beans dry after blanching to prevent watery casserole. Add crispy onions only after baking for best crunch. Can be made ahead and refrigerated up to 3 days before baking. Perfect for Thanksgiving, potlucks, or family dinners.