Keto Oven Roasted Asparagus Recipe - KetoFocus

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Easy Keto Oven Roasted Asparagus

By Annie Lampella, Pharm.D.

Published August 2, 2020 • Updated June 2, 2025

JUMP TO RECIPE ▼ Reader Rating 4.7 Stars (3 Reviews) EasyKid Friendly

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Oven roasted asparagus is an easy keto side dish you can prepare for dinner. Tossed asparagus spears with olive oil and a few seasoning and pop in the oven to crisp and bake.

Previous Next 18 Mins Print Pin Nutrition Facts

4

Servings

107

Calories

7g

Fat

5.1g

Protein

4.2g

Net Carb

9.4g

Total Carbs

Disclaimer: The nutrition information provided is an estimate and is for informational purposes only. I am a Doctor of Pharmacy (Pharm.D.); however, this content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always consult your physician or other qualified health provider before making any lifestyle changes or beginning a new nutrition program.

Ingredients

• 2 pounds asparagus
• 2 tablespoons olive oil
• 1 teaspoon salt
• 1/2 teaspoon black pepper
• lemon juice squeeze from 1/2 lemon

Step by Step Instructions

• STEP 1

  Preheat oven

  Preheat oven to 400 degrees. Wash, trim and dry asparagus spears.

  

• STEP 2

  Marinade asparagus

  Place asparagus spears in a ziploc bag or dish. Coat with olive oil, salt and pepper and lemon juice. Mix or shake to coat all over.

  

• STEP 3

  All in a row

  Spread asparagus in a single layer on a parchment or foiled lined baking tray.

  

• STEP 4

  Bake

  Bake at 400 degrees for about 12-15 minutes or until tender.

  

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Low Carb Oven Roasted Asparagus Recipe

Roasting asparagus in the oven is a fast way to prepare an easy keto side dish for dinner. Simply toss a bundle of asparagus spears with olive oil, salt, pepper and lemon juice and bake. This recipe makes crispy asparagus stalks loaded with tons of flavor with only a few simple asparagus. Sprinkle on some parmesan cheese for a vegetable dish the whole famiy will enjoy.

Is Asparagus Keto?

Yes, asparagus is keto-friendly. Not only is this green vegetable keto approved (as are most green vegetables) but it is also packed with tons of vitamins. It’s loaded with Vitamin A, C and E as well as B vitamins.

How Many Carbs are in Asparagus?

Asparagus is a keto vegetable because it has a low carbohydrate count. There are 2 grams net carbs in 6 spears of asparagus. It is one keto approved vegetable that you can fill up on!

How to Pick Ripe Asparagus

If you are looking for ripe, great quality asparagus, find asparagus spears that are firm and have tightly closed tips. When you squeeze the bundle and it squeaks, it is prime and ready to roast!

How to Prepare and Trim Asparagus

First, rinse off the asparagus by running under cold water. Pat dry. Next, you will want to remove the tough woody part of the asparagus. There are three different ways you can do this:

• Cut Them: You will want to find the spot of the asparagus where the woody part meets the tender spot. This can be determined by color. Cut where the asparagus is lighter and discard.
• Snap Them: Common wisdom says that if you bend the stalk, the asparagus will naturally break where it is tough.
• Peel Them: I will talk more about that process in the next section. Once you have the tough woody parts taken care of, you are ready to start cooking.

Is it Necessary to Peel Asparagus?

Peeling asparagus is not necessary and can be a bit of pain. However, peeling might be the least wasteful way to get rid of the toughness that comes with asparagus. Also, you will not be able to peel thin asparagus. You will only want to do this on thick stalks. Start by trimming a half-inch off the bottom of the asparagus. Using a peeler, peel from the bottom up to about one-third of the stalk. Do this all around the stalk. Repeat on each asparagus spear.

Can You Roast Asparagus in the Oven?

Yes, you can bake asparagus in the oven. Roasting asparagus using an oven is super easy. Just make sure to lay the asparagus as a single layer on the sheet pan. You will want each piece of asparagus to touch the pan as it cooks. The amount of time that it takes to cook the asparagus will depend on the size of the stalk. For medium-sized stalk, estimate 12 to 15 minutes in a 400-degree oven. You will need to adjust the time based on the stalk. Thinner stalks will take less time where thicker stalks will take slightly longer.

How to Tell if Roasted Asparagus is Done Cooking?

You can tell when roasted asparagus is done by the color. Fully cooked asparagus will be bright green. The stalks will be tender and crispy.

How to Store Asparagus

Fresh asparagus will keep for about one week in the fridge. The best way to store asparagus is by standing the bundle in a glass jar (like a measuring cup) that is filled with one to two inches of water. You can also cover loosely with a plastic bag to help keep the asparagus fresh.

Other Keto Recipes Using Asparagus

If you love asparagus, you’ll love to try these recipes:

• Keto Anti-Pasta Salad
• Air Fryer Parmesan Asparagus

Easy Keto Oven Roasted Asparagus: FAQS

Can I use a different type of oil instead of olive oil?

Absolutely! You can substitute olive oil with avocado oil or melted coconut oil for a slightly different flavor, while still keeping it keto-friendly.

What can I serve with oven roasted asparagus?

Oven roasted asparagus pairs beautifully with grilled chicken, steak, or fish. It also works great as a side for any low-carb dish!

How do I store leftover roasted asparagus?

Store any leftovers in an airtight container in the refrigerator for up to 3 days. To reheat, simply pop it back in the oven for a few minutes to regain that crispy texture.

Can I add other seasonings or ingredients to this recipe?

Definitely! Feel free to experiment with garlic powder, Parmesan cheese, or even a sprinkle of red pepper flakes for some heat. Just keep in mind that additional ingredients may alter the carb count slightly.

Is this recipe suitable for meal prep?

Yes! This roasted asparagus can be prepped in advance and stored in the fridge, making it a great option for meal prepping your keto meals for the week.

Nutritional information & Macros

Nutrition Information

Easy Keto Oven Roasted Asparagus

Servings: 4

Amount Per Serving
Calories	107
Fat	7g
Protein	5.1g
Total Carbs	9.4g
Net Carbs	4.2g

A note on accuracy:I calculate all my nutrition using USDA food database values. The actual macros may vary slightly depending on your specific ingredients (marinara brand, exact chicken weight, etc.). For precise tracking, I recommend weighing your portions. Disclaimer: I'm a Doctor of Pharmacy (Pharm.D.), but this content is not medical advice. Always consult your physician before making dietary changes, especially if you have underlying health conditions.

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About Annie Lampella, Pharm.D.

Annie Lampella is a Doctor of Pharmacy, mom, and the recipe creator behind KetoFocus. With a B.S. in Genetics from UC Davis and a Pharm.D., she has over 11 years of experience developing family-friendly keto recipes based on the science of human metabolism. She is the author of the Protein Packed cookbook, published by Victory Belt Publishing.

Learn more about Annie →

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1 Comment

1. Turned out really good and super simple. I added a bit of garlic powder. Perfect with grilled chicken for dinner.

   

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Hi, I'm Annie! Welcome to KetoFocus.

I'm a mom, a Doctor of Pharmacy (Pharm.D.), and I've been creating family-friendly keto recipes for over 13 years.

My background is in science (I have a degree in Genetics!), so I love using that knowledge to make delicious, reliable low-carb meals.

I'm also the author of the 'Protein Packed' cookbook, published by Victory Belt Publishing. I'm so glad you're here!

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