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Easy Keto Asparagus Casserole Recipe (low-carb)

This Keto Asparagus Casserole is delicious and perfect for those following a low-carb lifestyle. A creamy and cheesy dish featuring tender asparagus, making it a delightful way to enjoy your greens while staying on track with your keto goals. Simple to prepare and packed with flavor, this casserole is sure to become a family favorite.

Closeup of the golden crust of the casserole.

What are the differences between green and white asparagus?

Green and white asparagus differ primarily in their cultivation methods, taste, and nutritional content.

Green asparagus grows above ground, where it is exposed to sunlight, resulting in a vibrant green color and a slightly grassy, more robust flavor.

White asparagus, on the other hand, is grown underground or covered with soil to prevent photosynthesis, giving it a pale color and a more delicate, milder taste. Additionally, white asparagus tends to be thicker and requires peeling before cooking, while green asparagus is usually more tender and can be eaten with minimal preparation.

Ingredients needed for making Keto Asparagus Casserole collected before cooking.

How to prepare asparagus for cooking?

To prepare asparagus for cooking this Keto Asparagus Casserole, there is a little difference between green and white asparagus:

  1. Wash Thoroughly: Rinse the asparagus under cool running water to remove any dirt or debris.
  2. Trim the Ends: Snap or cut off the woody, tough ends of the asparagus spears. You can do this by bending the stalks until they naturally break or by cutting off about 1-2 inches from the bottom with a knife.
  3. Peeling: For thicker stalks of green asparagus, you might want to peel the lower part of the spears with a vegetable peeler to remove the tough outer layer, making them more tender. For white asparagus, this is essential as it has a thicker and tougher outer layer.

Now your asparagus is ready to be cooked using your preferred method, such as steaming, roasting, grilling, or sautéing.

Step-by-step pictures showing the preparation of the creamy sauce.

What ingredients go into this Keto Asparagus Casserole?

All you need ti makes this easy asparagus casserole recipe are simple ingredients:

  • 1 bunch asparagus (white)
  • 1 bunch asparagus (green)
  • 5 tbs dairy-free butter + more for greasing
  • 1 cup dairy-free sour cream
  • 2 tsp Mustard
  • 1 tsp Garlic powder
  • 1/2 tsp Onion powder
  • 5 oz vegan cheese, shredded
  • salt, pepper to taste

As you can see, I opted to base the cheesy sauce not on cream cheese or heavy cream, but a combination of sour cream and butter.

Ready creamy sauce and precooked asparagus.

How to make Keto Asparagus Casserole?

Preheat your oven to 380F. Set a casserole dish or baking dish ready, slightly greased with butter.

Let’s get the fresh asparagus ready. Wash, trim, and if necessary, peel the stalks. Bring water in a large pot to a boil and cook the asparagus for 4-5 minutes. Drain and set aside.

To make the creamy sauce, melt dairy-free butter in a small saucepan. Combine with the sour cream, mustard, garlic, and onion powder. Season with salt and black pepper to taste.

Step-by-step pictures showing the assembly of the Keto Asparagus Casserole.

Lay half of the asparagus on the bottom of the casserole dish. Give half of the sauce and then half of the vegan cheese (I suggest using a mix of cheddar cheese and mozzarella cheese). Repeat with the remaining ingredients.

Bake the Keto Asparagus Casserole for 20 minutes.

Before and after baking pictures of the casserole.

What to serve with keto Asparagus Casserole?

A keto asparagus casserole pairs wonderfully with a variety of low-carb dishes. Consider serving it alongside:

  • Grilled or Roasted Chicken: Simple, herb-seasoned chicken breasts or thighs add protein and complement the flavors of the casserole.
  • Cauliflower Rice: A light and fluffy side that soaks up any extra sauce from the casserole, providing a satisfying, rice-like texture without the carbs.
  • Bacon-Wrapped Shrimp: These savory bites bring a touch of elegance and a delightful contrast in texture, enhancing the overall meal experience.

These pairings ensure a balanced, flavorful, and low-carb meal.

A serving of the Keto Asparagus Casserole.

What to do with leftovers?

Leftover keto asparagus casserole can be transformed into delicious new meals with a few creative ideas:

  1. Breakfast Casserole: Reheat the casserole and top it with a few fried or poached eggs for a hearty and low-carb breakfast.
  2. Stuffed Peppers: Use the casserole as a filling for bell peppers. Simply hollow out the peppers, fill them with the leftover casserole, and bake until the peppers are tender.
  3. Soup Base: Blend the leftover casserole with some low-carb chicken or vegetable broth to create a creamy, flavorful soup. Adjust the seasoning as needed and heat until warm.

These options help you enjoy your leftovers while adding variety to your meals.

Closeup of a serving of Keto Asparagus Casserole.

Other recipes to try for your Keto diet

Collage of two photos of Keto Asparagus Casserole.

Leave your thoughts about this Keto Asparagus Casserole with a star rating in the comments below, and share the recipe on Instagram and Facebook.

Enjoy, Florian.

Closeup of a serving of Keto Asparagus Casserole.

Easy Keto Asparagus Casserole

Yield: 4
Prep Time: 5 minutes
Cook Time: 25 minutes
Total Time: 30 minutes

This Keto Asparagus Casserole is delicious and perfect for those following a low-carb lifestyle. A creamy and cheesy dish featuring tender asparagus, making it a delightful way to enjoy your greens while staying on track with your keto goals. Simple to prepare and packed with flavor, this casserole is sure to become a family favorite.

Ingredients

  • 1 lb white asparagus
  • 1 lb green asparagus
  • 5 tbs dairy-free butter + more for greasing
  • 1 cup dairy-free sour cream
  • 2 tsp mustard
  • 1 tsp garlic powder
  • 1/2 tsp onion powder
  • 5 oz vegan cheese, shredded
  • salt, pepper to taste

Instructions

  1. Preheat your oven to 380F. Set a casserole dish or baking dish ready, slightly greased with butter.Ingredients needed for making Keto Asparagus Casserole collected before cooking.
  2. Let's get the fresh asparagus ready. Wash, trim, and if necessary, peel the stalks. Bring water in a large pot to a boil and cook the asparagus for 4-5 minutes. Drain and set aside.Step-by-step pictures showing the preparation of the creamy sauce.
  3. To make the creamy sauce, melt dairy-free butter in a small saucepan. Combine with the sour cream, mustard, garlic, and onion powder. Season with salt and black pepper to taste.Ready creamy sauce and precooked asparagus.
  4. Lay half of the asparagus on the bottom of the casserole dish. Give half of the sauce and then half of the vegan cheese (I suggest using a mix of cheddar cheese and mozzarella cheese). Repeat with the remaining ingredients.Step-by-step pictures showing the assembly of the Keto Asparagus Casserole.
  5. Bake the Keto Asparagus Casserole for 20 minutes.Before and after baking pictures of the casserole.
Nutrition Information:
Yield: 4 Serving Size: 8 stalks
Amount Per Serving: Calories: 446Total Fat: 18gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 0mgSodium: 610mgCarbohydrates: 4gFiber: 5gSugar: 2gProtein: 15g

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