Gluten Free Keto Green Bean Casserole Recipe

An easy gluten-free keto green bean casserole made from scratch. This low carb alternative adds in bacon and cheese for more flavor. It's also a recipe made with wholesome ingredients, not a canned soup!

Article Index

• What can be substituted for cream of mushroom soup in a casserole?
• Can you have green beans on a keto diet?
• How to Make a Keto Green Bean Casserole
• Cook’s Tips
• How many carbs are in green bean casserole
• Recipe Variations and Ideas
• Other Popular Keto Holiday Dishes
• Kitchen Tools Needed
• Recipe

Easy to prepare casseroles are my family’s favorite dishes to enjoy in the cooler months of winter. I used to make one of our regulars with canned cream of mushroom soup, but I stay away from high carb ingredients now. That’s why I make this gluten-free keto green bean casserole completely from scratch!

What can be substituted for cream of mushroom soup in a casserole?

The ingredients in a can of condensed cream of mushroom soup can be a little scary. However, blend of chopped mushrooms, chicken broth, sour cream, chopped celery, and some seasonings can be used as a substitute. Seasonings that work well include garlic, salt, minced onion, and thyme.

Can you have green beans on a keto diet?

There’s no reason to avoid green beans on keto just because they are a legume. The carb count is low enough where they shouldn’t knock you out of ketosis. One cup of cut green beans has just 7 grams of total carbs, including 3.5 grams of fiber.

How to Make a Keto Green Bean Casserole

1. Cook green beans (either fresh or frozen) until crisp tender.
2. Fry chopped bacon until crispy then remove from grease and set aside on paper towels.
3. Cook celery, garlic, and mushrooms in the bacon grease with a little butter until celery is soft.
4. Stir in chicken broth, minced onion, and dried thyme then cook four more minutes.
5. Mix green beans and celery mixture with half the bacon along with sour cream and some grated cheese.
6. Spread mixture into a 1-½ quart baking dish or a 7x11-inch casserole pan.
7. Sprinkle with additional grated cheese and bacon. For extra crunch, sprinkle on some crushed pork rinds too.
8. Bake for about 15 minutes.

Cook’s Tips

When I first created my low carb green bean casserole, I didn’t add the bacon. But, I thought it would be a good addition along with the sour cream and cheese.

The bacon grease is perfect for cooking celery and mushrooms in. Now only does it add flavor, but it’s a great source of healthy fat. So if you are using precooked bacon, you’ll miss this benefit.

Cook the celery until very it’s very soft because you don’t want the celery crunch in the casserole. You can leave out the mushrooms if you wish, but they are typically added to a traditional green bean casserole.

Making a larger gluten-free green bean casserole

To make a larger size for big holiday dinners, you’ll want to double the recipe. A double batch will fit nicely into a standard 9x13-inch casserole pan.

Although I prefer baking my casseroles in a stoneware pan, you can use a glass, or enameled cast iron baking pan instead. I don't recommend using a metal baking pan as it can add a metallic taste.

Can the dish be made in advance?

Absolutely! I like to make it in advance to spread out the cooking for the holidays. You can prepare the casserole one or two days ahead and bake it just before serving. Just add a few minutes to the baking time if it’s cold.

You can also freeze the casserole after preparation for longer term storage. When ready to serve, you can bake the casserole frozen at 350°F for about 45 minutes or until warmed throughout.

How do you reheat green bean casserole

If you have a long distance to travel and need to reheat the dish before serving, cover it with foil and bake at 350°F for 5 to 10 minutes until it’s at the right temperature. However, if it’s been chilled, you’ll want to bake it for an additional 10 minutes or so.

How many carbs are in green bean casserole

The classic Campbell’s recipe made with their condensed soup and French fried onions has 19.6 grams of carbs, including 1.8 grams fiber, for each serving. My recipe has just 5 grams of net carbs.

Recipe Variations and Ideas

Feel free to customize this gluten free green bean casserole to suit your own taste. But be sure to keep all the ingredients low carb. I’ve found that a blend of almond milk and cream cheese works as an alternative to the sour cream.

For those that like the crispy onions on top, I’ve got a solution. You could fry up your own onions until golden brown and chop up to sprinkle on the top of the casserole.

Other Popular Keto Holiday Dishes

We love this low carb casserole better than the traditional one made with processed ingredients. Why not give it a try and see for yourself?

If you are looking for more of a complete meal, you may want to try my chicken casserole with green beans. It combines the chicken and string beans in a delicious cream cheese sauce.

Below you’ll find some of my top favorites for holiday low carb sides:

• Crispy Oven Fried Green Beans
• Easy Keto Creamed Spinach
• Loaded Cauliflower Casserole
• Mashed Turnips
• Baby Kale Avocado Salad
• Green Beans Almondine

Do you have a favorite low carb side dish that you always serve for holiday dinners? Leave a comment and let me know what it is!

Kitchen Tools Needed

I recommend the following items to prepare the recipe:

• 12-inch Cast Iron Skillet
• 7x11-inch casserole dish (use a 9x13-inch if doubling the recipe)
• Colander (to drain the cooked green beans if needed)

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