Keto Green Bean Casserole

This Keto Green Bean Casserole reimagines a holiday classic, making it low-carb and incredibly flavorful. Featuring fresh green beans in a creamy mushroom sauce, topped with a crunchy almond-Parmesan crumble, this dish is sure to be a hit at any gathering, whether your family is keto or not.

Ingredients & What You’ll Need

Gather these fresh ingredients to create a truly irresistible Keto Green Bean Casserole.

• For the Topping:
  • Almond Flour (½ Cup): Provides the base for a crisp, low-carb crumble.
  • Shredded Parmesan Cheese (¼ Cup): Adds sharp, salty flavor to the topping.
  • Sliced Almonds (¼ Cup): Contributes extra crunch and nutty flavor.
  • Melted Butter (2 Tablespoons): Binds the topping ingredients and adds richness.
• For the Casserole:
  • Avocado Oil (1 Tablespoon): Used for sautéing the aromatics.
  • Diced Onion (½ Cup): Creates an aromatic base for the creamy sauce.
  • Mushrooms (8 ounces, finely chopped): Adds an earthy, umami depth to the sauce. Baby bella mushrooms work beautifully.
  • Heavy Cream (1 Cup): Forms the rich, luxurious base of the casserole sauce.
  • Chicken Bouillon (1 Cube): Enhances the savory chicken flavor in the sauce.
  • Cooked Green Beans (24 ounces): The star vegetable of the casserole. Ensure they are pre-cooked.
  • Kosher Salt and Pepper: Essential seasonings to enhance all the flavors.

How to Make Keto Green Bean Casserole

Whipping up this low-carb holiday side is straightforward. Follow these steps for a perfectly creamy and crunchy casserole.

Preparing the Baking Dish and Aromatics

First, preheat your oven to 350°F (175°C). Lightly spray a 9×9-inch casserole dish with cooking spray to prevent sticking. Next, heat the avocado oil in a large skillet over medium heat. Add the diced onion and sauté it for about 5-8 minutes until it softens. Then, add the finely chopped mushrooms to the skillet and cook for an additional 5 minutes, allowing them to release their moisture and brown slightly.

Crafting the Creamy Mushroom Sauce

Once the onions and mushrooms are tender, pour in the heavy cream and add the chicken bouillon cube to the skillet. Stir well to combine. Season the mixture with kosher salt and pepper to taste, adjusting to your preference. Allow the sauce to come to a gentle simmer, just enough to dissolve the bouillon and warm through.

Assembling the Casserole

In a separate large mixing bowl, season your cooked green beans with a little salt and pepper. Pour the creamy mushroom mixture from the skillet over the green beans. Stir everything together thoroughly to ensure the green beans are evenly coated with the rich sauce. Carefully pour the entire green bean mixture into your prepared baking dish, spreading it out evenly.

Preparing and Adding the Topping

In another mixing bowl, combine all the topping ingredients: the almond flour, shredded Parmesan cheese, sliced almonds, and melted butter. Mix these thoroughly until they are well combined and have a crumbly texture. Evenly layer this delicious mixture over the top of the green beans in the baking dish.

Baking and Serving

Place the casserole dish into your preheated oven and bake for 30 minutes. The topping should turn a beautiful golden brown and become wonderfully crisp, while the casserole itself heats through and the sauce bubbles. Once baked, remove from the oven and serve immediately. Enjoy this comforting, low-carb holiday staple!

Conclusion

This Keto Green Bean Casserole truly reinvents a holiday favorite, proving that delicious, comforting food can absolutely be low-carb. With its rich, creamy mushroom sauce, tender green beans, and irresistible almond-Parmesan topping, it’s a dish that your whole family will adore. It’s easy to make, uses fresh ingredients, and is a fantastic way to enjoy classic flavors while sticking to your ketogenic lifestyle.