Homemade French’s Green Bean Casserole Recipe – Low Carb

Green Bean Casserole
Grain Free Keto Friendly Kid Friendly Low Carb Vegetarian 

Nutrition: 194 Calories | 12.2g Net Carbs | 4.4g Protein | 12.6g Total Fat

A lower carb version of the classic French’s green bean casserole recipe with tender green beans, creamy homemade sauce, and crispy onions.

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French's Onions, Green Beans

French’s green bean casserole is such a classic dish. Perfectly cooked green beans in a creamy sauce and topped with crunchy fried onions. For me, this always brings back memories of Thanksgiving. Although, it’s a great side dish any night of the week. This recipe has an easy homemade cream sauce. And, I’ve reduced the carbs by strictly using the fried onions as a topping.

Steaming Green Beans

Pre-Cook the Green Beans

The first step in this recipe is to prep your green beans. If you’re using fresh green beans, trim the ends and cut them to your desired length. If you’re using frozen green beans, they usually come trimmed. So, you can skip that step. Steam the green beans for 10 minutes, until they are tender crisp. I tried once to skip pre-cooking the green beans to save time. It didn’t work. The casserole spent a lot more time in the oven and the green beans still weren’t quite done.

Seasoned Sour Cream Sauce

Homemade Cream Sauce

While the green beans are steaming, make your cream sauce. Other recipes will use canned soup, usually cream of mushroom, as a sauce. I like making my own better. It’s easy, tasty and I know exactly what’s in it. So, in a bowl, combine sour cream, milk, onion powder, garlic powder, salt and pepper. Add a few tablespoons of almond flour and whisk everything together. The almond flour acts as a low carb thickener, so when your casserole is done the sauce will coat the green beans.

Green Beans and Cream Sauce

Combine in a Casserole Dish

Once the green beans are cooked, put them in a 9″ by 13″ casserole dish. Then, pour the cream sauce on top. Use tongs or a spoon to mix everything together. Traditionally, you would also mix in some of the fried onions into the casserole. Skipping this eliminates 36 grams of carbs from the dish. With the onion powder in the cream sauce, you won’t notice a difference. And, it’s a quick way to make a favorite dish fit your lifestyle.

French's Green Bean Casserole

Bake the Casserole

Finally, after the green beans are coated in cream sauce, bake your green bean casserole at 375° for 30 minutes. When you take the casserole out of the oven, the sauce should be bubbly around the edges. Sprinkle the French’s Fried Onions over there top of the casserole. Use about half of the package. Put the casserole back in the oven for 5 minutes until the onions are golden a crispy. Let the green bean casserole cool for about 5 minutes and then serve.

Green Bean Casserole with Crispy Onions

Looking for other side dish ideas? Check out these: Delecata Squash Rings, Balsamic Roasted Brussel Sprouts, Garlic Parmesan Cauliflower Puree, and Green Beans Almondine.

Green Bean Casserole

Homemade French’s Green Bean Casserole Recipe – Low Carb

A lower carb version of the classic French’s green bean casserole recipe with tender green beans, creamy homemade sauce, and crispy onions.

Total Time: 45 min
Prep Time: 15 min
Cook Time: 30 min


  • 2 lbs Green Beans
  • 1 Cup Sour Cream
  • 3/4 Cup Milk
  • 1 tsp Salt
  • 1/2 tsp Pepper
  • 1 tsp Garlic Powder
  • 1 tsp Onion Powder
  • 3 Tbsp Almond Flour
  • 3 oz French’s Crispy Fried Onions


  1. Pre-heat the oven to 375°. Trim the green beans and put them in a steamer pot on the stove. Steam the green beans for 10 minutes.
  2. While the green beans are steaming, mix together the cream sauce. In a bowl, whisk together the sour cream, milk, salt, pepper, garlic powder, onion powder, and almond flour.
  3. After the beans are done steaming, pour them into a casserole dish. Pour the cream sauce into the casserole dish, and stir the green beans to coat. Bake at 375° for 30 minutes, until the sauce is bubbly around the edges of the dish. 
  4. Sprinkle the fried onions one the top of the casserole and bake for another 5 minutes until the onions are golden and crispy. Let the casserole cool for a few minutes and serve. 


Yield: 8 servings, Serving Size: 3/4 Cup

Amount Per Serving:  Calories: 194,  Total Fat: 12.6g, Saturated Fat: 6.3g,  Cholesterol: 22.3mg, Sodium: 470.5mg, Carbohydrates: 15.6g, Fiber 3.4g, Sugars: 6.8g, Protein 4.4g

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4/5 (3 Reviews)

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