Keto Green Bean Casserole Recipe (2024)

HOW TO MAKE THE BEST KETO GREEN BEAN CASSEROLE

My mother-in-law (Grammy) makes the most amazing Green Bean Casserole. Before I shared my first Thanksgiving meal with my husband’s family, Green Bean Casserole was just “meh” to me. It wasn’t great, and it wasn’t terrible. However, that first Thanksgiving I spent in Ohio years ago changed my mind forever, and I’ve made it the way she does ever since.

Now, I make Grammy’s Green Bean Casserole for our special holiday meals such as Christmas, Thanksgiving, and Easter. A couple of weeks ago, my daughter asked if I could make a keto version of Green Bean Casserole. Besides the French Onions and Cream of Mushroom Soup, I didn’t think it would be too hard. After playing around with the recipe a little, I can’t believe how much this tastes like Grammy’s Green Bean Casserole!

Keto Green Bean Casserole Crispy Topping

The trickiest part was finding a substitute for the French-fried onions topping. That crunch and the oniony flavor are essential for a true green bean casserole. The secret to copycat keto French Onions is baking shredded cheddar and parmesan cheese, minced onion, and Italian seasoning until crispy. You break into pieces, and you’ve got the perfect keto-friendly alternative. When I told my husband what I was using, he gave me this look that said, “That will never work.” I gave him a bite, and he looked at me, shocked, with his mouth gaping open. He changed his tune quickly and said, “Holy Smokes, that tastes just like it! I am shocked!!” Seriously, y’all, it is that good.

Ingredients:

• Green beans – Provides the base and main ingredient for the casserole.
• Mushrooms – add flavor and texture to the base.
• Garlic – adds a savory flavor to the base.
• Butter – provides richness and flavor to the base.
• Heavy whipping cream – provides creaminess and richness to the base.
• Salt and pepper – enhances the flavor of the dish, and pepper also adds a mild heat.
• Cream cheese – adds tanginess and helps to thicken the base.
• Nutmeg – adds a warm, nutty flavor to the dish.
• Cheddar cheese – adds a rich and sharp flavor to the base and topping.
• Mozzarella cheese – balances the sharpness of the cheddar cheese.
• Sharp cheddar cheese (for topping) – adds a crispy, crunchy texture and a sharp flavor.
• Minced onion (for topping) – adds a crunch and a savory flavor to the topping.
• Parmesan cheese (for topping) – adds a nutty and salty flavor to the topping.
• Italian seasoning (for topping) – adds a savory and herbaceous flavor to the topping.

How to Make Keto Style Green Bean Casserole

Step 1: Preheat oven to 350°F (175°C) and grease a casserole dish. Sauté garlic and mushrooms in melted butter in a saucepan.

Step 2: Add heavy whipping cream, cream cheese, nutmeg, salt, and pepper.

Step 3: Stir in shredded cheddar and mozzarella cheese. Simmer on medium-high for about 25 minutes or until the mixture reduces and thickens. Make sure to simmer with the lid off so the moisture can evaporate and reduce and stir occasionally.

Tip: If you have an immersion blender, you can easily blend the diced mushrooms for a smoother texture and enhanced flavor.

Step 4: While the mushroom soup mixture simmers, prepare a cookie sheet with parchment paper. Sprinkle 2 cups of shredded cheese, minced onion, parmesan cheese, and Italian seasoning onto the parchment paper. Bake until the cheese melts and turns crispy and golden brown (approximately 8-12 minutes) for a deliciously crunchy topping!

Step 5: The shredded cheese will melt and fuse together, forming a single sheet of crispy, flavorful goodness during baking.

Step 6: Once out of the oven, let the cheese topping cool before breaking it into small bites. Place the pieces on paper towels to absorb any excess grease. As it cools, the topping will continue to crisp up. You can transfer it to a small bowl after cooling or leave it on the paper towels until it’s ready to be added to the casserole.

Step 7: In your greased 13 x 9 baking dish, layer it with 1 1/2 cans of drained green beans. Pour the mushroom soup mixture over the green beans and sprinkle 1 cup of shredded cheddar cheese on top. Add the remaining green beans and a generous layer of shredded mozzarella cheese to complete the delicious keto green bean casserole.

Step 8: Bake the casserole for 25 minutes, then carefully remove the dish from the oven. Sprinkle the baked cheese topping over the casserole and return it to the oven for an additional 5 minutes to melt and meld the flavors. Allow the casserole to rest for 5 minutes before serving. Get ready to enjoy this scrumptious keto green bean casserole!

Note:This recipe makes 12 servings, so it’s perfect for a crowd! If serving more people, feel free to double or triple the recipe.

Is this recipe gluten-free?

Yes, this keto green bean casserole recipe is gluten-free. However, it’s always important to double-check the ingredients of any packaged or pre-made items used in the recipe to ensure they are gluten-free, as some products may contain hidden sources of gluten.

What are variations to this recipe that keep it low carb?

• You can use crushed pork rinds instead of the crispy cheese topping for a dairy-free option.
• Use regular-cut green beans instead of French style.
• Use coconut cream instead of heavy whipping cream to make the recipe dairy-free and lower in carbs.
• Use the coconut aminos instead of Worcestershire sauce to make the recipe soy-free and lower in carbs.
• Use ghee instead of butter for a dairy-free and lower carb option.
• You can also use olive or avocado oil in place of butter.
• Add cooked bacon or prosciutto to the recipe for additional flavor and protein.
• Use roasted or sauteed cauliflower instead of green beans for a low carb option.
• Use chopped kale instead of green beans for a low carb and nutrient-rich option.
• Add chopped roasted red pepper or sun-dried tomatoes for a pop of color and flavor.

WHAT SIZE BAKING DISH WORKS IN THIS RECIPE?

When making this Keto Green Bean Casserole with Cream Cheese as posted, I would suggest using a 9 X 13 casserole dish. However, if you don’t have a baking dish of that size, you can use a similar-sized dish, such as a 9 x 9-inch square baking dish or a round baking dish with a similar capacity. Just keep in mind that the cooking time may vary slightly depending on the size and type of baking dish used, so it’s a good idea to keep an eye on the casserole as it bakes to ensure it cooks evenly. If you cut the recipe in half, a 9-inch square baking dish would work nicely.

CAN YOU USE FRESH GREEN BEANS IN THIS KETO GREEN BEAN CASSEROLE?

CAN YOU MAKE THIS EASY GREEN BEAN CASSEROLE IN ADVANCE?

Yes, you can make this easy green bean casserole in advance. Follow the recipe instructions up to the point of baking, but do not bake it yet. Instead, cover the casserole dish tightly with plastic wrap or aluminum foil and store it in the refrigerator for up to 24 hours before baking. When ready to bake, remove the plastic wrap or foil and bake according to the recipe instructions. Keep in mind that the baking time may need to be slightly extended if the casserole is chilled, so check for doneness with a toothpick or fork before serving.

This keto-friendly green bean casserole is so versatile as a side dish. It goes with so many different meal options. You will be surprised how much the melted cheese crispy topping with dried minced onions tastes like regular crispy onions on a traditional green bean casserole.

This keto-friendly green bean casserole is so versatile as a side dish. It goes with so many different meal options. You will be surprised how much the melted cheese crispy topping with dried minced onions tastes like regular crispy onions on a traditional green bean casserole.

How Many Net Carbs Does this Low Carb Version Have?

There are 7 carbs and 2g of fiber, making it 5g net carbs per serving based on 12 servings.

Why You’ll Love This Keto Green Bean Casserole Recipe

Indulge in this creamy and cheesy Keto Green Bean Casserole! A perfect low-carb and gluten-free substitute for the traditional recipe, topped with crispy cheese. Ideal for holidays or weeknight dinners. Make it in advance for added convenience.

Should I Use Fresh or Frozen Green Beans?

How Many Net Carbs Does this Low Carb Version Have?

What to Serve with Keto Green Bean Casserole:

Need more keto inspiration for your Thanksgiving or holiday spread? These keto-friendly main courses are fantastic choices for your festive get-togethers!

• Baked Keto Ham with Sugar-Free Glaze
• Keto Pot Roast
• Beef Short Ribs

More Keto Side Dishes:

• Keto Southern Green Beans
• Fried Cabbage and Bacon
• Brussels Sprouts and Bacon
• Keto Cauliflower Mac N Cheese
• Creamy Keto Cauliflower Mash

More Keto-Friendly Recipes

I know you are going to love my Keto Green Bean Casserole. Along with this, make sure you check out all of our family’s favorite keto comfort foods found in my Keto Recipe Index.