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Low-Carb Green Bean Casserole
Low Carb Meals

Low-Carb Green Bean Casserole

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As November festivities approach, there’s nothing more traditional than a warm and comforting casserole. The Low-Carb Green Bean Casserole offers a healthy twist on a classic Thanksgiving side dish, making it perfect for those watching their carbs. It’s loaded with fresh green beans, creamy mushroom sauce, and a crispy topping that’s sure to satisfy everyone at the table.

This version of the casserole uses low-carb ingredients, swapping the usual fried onions and canned soups for healthier alternatives. Not only is it a lighter option, but it’s also packed with flavor from the homemade sauce and fresh green beans. It’s a great choice for anyone looking to balance indulgence with nutrition during the holiday season.

If you’re preparing a full Thanksgiving meal or just want a warm side dish to accompany your weeknight dinner, this recipe is both easy and delicious. Plus, it takes only about 40 minutes to make! So, gather your ingredients and let’s bring this Thanksgiving classic to life—without the carb overload.

Ingredients for Low-Carb Green Bean Casserole

  • 1 lb (450g) fresh green beans, trimmed and cut in half
  • 1 cup mushrooms, sliced
  • 1/2 cup heavy cream
  • 1/2 cup grated Parmesan cheese
  • 1/2 cup shredded mozzarella cheese
  • 1/4 cup almond flour
  • 2 tbsp butter
  • 1 small onion, diced
  • 2 cloves garlic, minced
  • 1/2 tsp onion powder
  • Salt and pepper to taste

About the Ingredients

This casserole maintains its comforting, creamy texture while being low in carbs. The fresh green beans provide a great source of fiber, while the homemade mushroom sauce keeps the flavors authentic. The almond flour adds a low-carb crunch to the topping, making it the perfect keto-friendly side dish. It takes about 20 minutes to prep and another 20 minutes to bake, making it a quick and delicious addition to your Thanksgiving feast.

Method of Preparation

  1. Preheat your oven to 375°F (190°C).
  2. Blanch the green beans in boiling water for 5 minutes, then drain and set aside.
  3. In a skillet, melt butter and sauté the onions and garlic until fragrant. Add the mushrooms and cook for 5 minutes until tender.
  4. Add the heavy cream, onion powder, salt, and pepper to the skillet, stirring to create a thick, creamy sauce.
  5. Combine the green beans with the mushroom sauce in a large bowl. Transfer to a greased baking dish.
  6. Top the casserole with grated Parmesan, mozzarella, and almond flour.
  7. Bake for 20-25 minutes or until the top is golden brown and the sauce is bubbling.
Low-Carb Green Bean Casserole

Tips for a Perfect Low-Carb Casserole

  • Add some bacon: For extra flavor, toss in some cooked, crumbled bacon before baking.
  • Cheese variety: Feel free to add cheddar or Gruyère for a different cheese flavor.
  • Make ahead: Prepare the casserole a day in advance, refrigerate, and bake when needed for a hassle-free holiday meal.

Looking for a dessert to pair with this dish? Check out our Keto Pecan Pie Bars for a sweet end to your low-carb Thanksgiving feast!

Wrapping Up with Green Bean Goodness

The Low-Carb Green Bean Casserole is a delicious, low-carb twist on a Thanksgiving classic. Whether served as a side for your holiday feast or as part of a weeknight dinner, it’s a comforting dish that brings warm, nostalgic flavors to the table. Make it this November and enjoy the best of both worlds—taste and health!

Want more Thanksgiving recipes? Don’t miss our Low-Carb Turkey Stuffed Peppers for a complete holiday meal.