Sautéed Asian Zucchini Onions

Section: Perfect Side Dishes to Complete Any Meal

This sautéed Asian zucchini and onion dish comes together in under 15 minutes using coconut aminos, sesame oil, and garlic for bold flavor. The key to avoiding mushy zucchini lies in the cutting technique—thicker matchsticks hold their texture beautifully. Onions are added toward the end for a crisp bite, and toasted sesame seeds bring the perfect final crunch. This healthy side is low carb, Whole30 compliant, and ideal for weeknight meals when time is tight but flavor still matters.

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Published By Ioana
Updated on Tue, 17 Jun 2025 12:45:55 GMT
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Sautéed Asian Zucchini and Onions. | ioanacooks.com

This savory side dish has saved me countless times on busy evenings when I needed something fast yet flavorful. With zucchini and onion cooked just right and kissed with Asian seasonings, this comes together in under 15 minutes and pairs well with just about anything from grilled meat to rice bowls.

I first made this when my fridge was nearly empty and it instantly became a go to thanks to how quickly it comes together and how much everyone loved it.

Ingredients

  • Avocado oil: great for high heat sautéing with a neutral flavor
  • Fresh garlic: brings a strong base aroma and punch
  • Zucchini: firm and mild tasting pick medium ones without bruises
  • Onion: adds sweetness and texture slice thinly for even cooking
  • Sea salt: enhances all the other flavors
  • Coconut aminos: a soy free substitute that gives depth
  • Fish sauce: umami rich and essential for authentic Asian flavor
  • Toasted sesame oil: adds a nutty aromatic finish avoid if doing AIP
  • Toasted sesame seeds: final crunch and flavor boost optional for AIP

Step-by-Step Instructions

Cut the Zucchini Properly:
Wash zucchini and do not peel. Cut each one into three equal parts widthwise. Quarter each part lengthwise then halve those quarters again lengthwise. You should end up with chunky sticks that cook evenly and retain bite
Heat the Aromatics:
Place a large skillet over medium heat and add the avocado oil. Once hot add the minced garlic and cook stirring constantly for about 30 seconds until fragrant
Cook the Zucchini:
Add the cut zucchini to the pan in a single layer. Let it cook for 4 to 5 minutes undisturbed to allow browning then stir and continue cooking for another 3 to 4 minutes until edges are golden but centers are still firm
Add Flavor and Onion:
Pour in coconut aminos fish sauce and sesame oil and stir well to coat. Add sliced onions and cook for just 1 to 2 minutes until slightly softened but still crisp
Finish with Sesame Seeds:
Remove from heat and sprinkle toasted sesame seeds over the top. Serve warm for the best texture
Sautéed Asian Zucchini and Onions. Bookmark
Sautéed Asian Zucchini and Onions. | ioanacooks.com

My favorite part is the sesame seed crunch on top. My niece actually started eating zucchini thanks to this dish and now asks for it by name

Storage Tips

Store leftovers in an airtight container for up to 3 days. Reheat in a skillet to preserve texture not in the microwave which softens the zucchini too much

Ingredient Substitutions

Use ghee or coconut oil if you do not have avocado oil. Tamari or light soy sauce can replace coconut aminos if gluten is not a concern

Serving Suggestions

This goes beautifully next to grilled chicken or salmon. Add a fried egg on top and make it a quick lunch bowl

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Sautéed Asian Zucchini and Onions. | ioanacooks.com

Cultural Context

Inspired by common stir fry pairings this dish uses Asian pantry staples and cooking methods but adapts them for dietary needs like Whole30 and AIP

Frequently Asked Questions About Recipes

→ How do you prevent zucchini from becoming mushy?

Cut zucchini into thick matchstick pieces and avoid overcooking. This helps retain a firm texture during sautéing.

→ Why add onions later instead of at the beginning?

Adding onions toward the end keeps them slightly crisp, preventing them from turning soft and overly sweet.

→ Can I make this dish without sesame oil?

Yes, you can omit sesame oil, especially if following AIP guidelines. It will still be flavorful due to garlic and coconut aminos.

→ What type of oil is best for sautéing this dish?

Avocado oil, ghee, or coconut oil all work well for high-heat cooking and add a nice base flavor to the vegetables.

→ Is this side dish suitable for Whole30?

Yes, this dish is Whole30-friendly when using compliant ingredients like coconut aminos and omitting sesame oil if needed.

Sautéed Asian Zucchini Onions

Healthy Asian zucchini with onions ready in 15 minutes. Light, quick and flavorful for busy nights.

Time Needed to Prep
7 minutes
Cooking Duration
8 minutes
Overall Time
15 minutes
Published By: Ioana

Category of Recipe: Side Dishes

Preparation Difficulty: Easy to Make

Type of Cuisine: Asian

Number of Portions: 2 How Many It Serves (2 servings)

Dietary Preferences: Low-Carb Friendly, No Gluten, Dairy-Free Suitable

Ingredients You'll Need

→ Main Ingredients

Ingredient 01 1 tablespoon avocado oil or ghee or coconut oil
Ingredient 02 3 cloves garlic, minced
Ingredient 03 2 medium to large zucchini
Ingredient 04 1/2 onion, thinly sliced
Ingredient 05 1/4 teaspoon sea salt, or more to taste
Ingredient 06 1 tablespoon coconut aminos
Ingredient 07 1 teaspoon fish sauce
Ingredient 08 1 teaspoon toasted sesame oil (omit for AIP)
Ingredient 09 1 teaspoon toasted sesame seeds (omit for AIP)

Steps to Follow

Step 01

Cut the zucchini into three even sections widthwise. Quarter each section lengthwise, then halve each quarter lengthwise to create thick sticks.

Step 02

In a large skillet over medium heat, warm the avocado oil. Add minced garlic and cook for 30 seconds until fragrant.

Step 03

Add the zucchini sticks to the skillet. Cook for 5 to 7 minutes, stirring occasionally, until they begin to brown but remain firm.

Step 04

Pour in coconut aminos, fish sauce, and sesame oil. Stir well to coat the zucchini evenly.

Step 05

Stir in the sliced onions and cook for 1 to 2 more minutes, just until slightly softened but still crisp.

Step 06

Sprinkle toasted sesame seeds over the dish and serve immediately while hot.

Extra Tips

  1. Cutting zucchini into thick sticks helps maintain texture and prevents mushiness.
  2. Add onions toward the end of cooking to keep their crunch and enhance flavor.

Tools You'll Need

  • Large skillet
  • Cutting board
  • Chef’s knife
  • Wooden spoon or spatula

Allergen Information

Carefully check food labels for allergens and consult an expert if you're uncertain.
  • Contains fish (fish sauce)
  • May contain sesame (sesame oil and seeds)

Nutritional Information (Per Serving)

Remember, these values are for guidance only and shouldn't replace advice from a professional.
  • Calories Per Serving: 72
  • Total Fat: 5 grams
  • Carbohydrate Amount: 6 grams
  • Protein Amount: 2 grams