Mexican Grilled Onions (Cebollitas Asadas)

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Beautifully tender and charred, these Mexican grilled onions are a delicious vegan side dish to team up with your fajitas, Tajin shrimp tacos and other Mexican barbecue favorites. Cambray onions are lightly seasoned and grilled until they’re beautifully caramelized in this easy 10 minute recipe. 

The traditional version of this recipe, aka Cebollitas Cambray, requires you to use Mexican green onions, but here, I’ve used spring onions, which are quite similar, and much easily available.

Charred Mexican grilled onions served with lime wedges as a flavorful barbecue side dish.

I’ve recently been experimenting with a lot of Mexican recipes. My cucumbers with Tajin, Mexican broccoli salad and Mango con Tajin were all big hits, and featured fresh veggies as the hero ingredient. 

So of course, I had to try these grilled spring onions too!

Quick Look: Mexican Grilled Onions

  • 🔪Prep time: 2 minutes.
  • ⏲️Cook time: 10 minutes.
  • 👪 Servings: 2 servings.
  • 📋Main ingredients: Green onions, oil, seasoning sauce, seasonings.
  • ♨️Cooking method: Season green onion greens 🡢 cover in foil 🡢 grill 🡢 season again and serve.
  • ⭐Difficulty: Easy.
  • 🥣Serving ideas: Serve as a side with Mexican caviar, fruit Pico de Gallo and some Mexican roasted potatoes.
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What's So Great About the Recipe?

  • I love this recipe for its simplicity and how quick (like my watermelon and Tajin salad) and effortless it is. It took me under 15 minutes to put these together- 12 minutes to be precise.  
  • Another big plus is the versatility of these onions. They’re grilled to your liking and are savory, salty and perfectly caramelized- ready to be served with your favorite Mexican BBQ dishes.

Recipe Ingredients

Ingredients for Mexican grilled onions including green onions, soy sauce, lime juice, olive oil, salt, and pepper.

Green onions: I’ve used green onions for this recipe, but if you’re able to get your hands on the OG Cambray onions, I would highly recommend using them. They have a much bigger, rounder bulb. 

Seasoning sauce: A dash of soy sauce or some Maggi seasoning sauce can lend the grilled onions a delicious depth of flavor. 

Lime: Lime juice balances out all the other flavors with its citrusy notes. 

Seasonings: I like to keep the seasonings simple, so I just used some salt (love using my jalapeno salt) and pepper. You can also use some Tajin seasoning if you want to. I love using my homemade Tajin seasoning here.

Oil: And of course, you’ll need some oil to help the onions caramelize, but not end up burning and sticking. 

See recipe card for quantities.

Substitutions & Variations

  • You can also bring some variation to the classic Cebollitas Asadas recipe by using a different type of onion. Red onions and white onions are some classic choices that you can go for. 
  • If you want to try a gluten free version of this recipe, just skip the soy sauce and use tamari instead. 
  • You can also try seasoning the scallions with some Worcestershire sauce if you want to. I like using my Mexican chili oil sometimes to lend it a fiery kick.

How to Make Mexican Grilled Onions

Fresh green onions trimmed and prepared for making Mexican grilled onions.

Step 1: Wash and chop ½ inch off the tops of the green onions. Pat dry. 

Green onions placed on foil and seasoned with soy sauce, oil, salt, and pepper.

Step 2: Place onions in the middle of a large sheet of foil. Season with salt and pepper and drizzle the soy sauce and oil. 

Foil packet filled with seasoned green onions ready for grilling.

Step 3: Wrap up the onions and make foil packets. Grill the onions for about 8-10 minutes and take off heat before opening them up. 

Tender grilled green onions removed from the foil after cooking.

Step 4: Transfer them to a platter and sprinkle with salt and a light drizzle of lime juice before serving. 

💭Top Tip

Remember to flip the foil packet midway through the cooking time to ensure that the onions are grilled perfectly on all the sides. 

Grilled onions topped with lime juice and served on a platter.

Tips & Tricks to Nail the Recipe

  • Remember to preheat your grill before you get the foil packets in. 
  • If you’re using a gas grill just like I did, you can do that too. Just remember that the cooking time for these might be slightly higher. 
  • If you want some of that extra char, open up the foil packets and transfer onions directly on the grill. Cook these on high heat for about a minute or two or until softened and lightly charred. 
  • Use a sturdy pair of barbeque tongs to move the foil packets easily.
  • If you love a kick of heat, drizzle some Chamoy sauce over the grilled onions right before you serve. I did the same when I made my apples with Chamoy and Tajin.
  • You can also use your leftover grilled Mexican onions in lots of different recipes. I like to chop them up and add them to my breakfast eggs (especially my chili crisp fried eggs) and even my fresh salads to bring in some smoky flavor.
Close-up of caramelized Mexican grilled onions with smoky char marks.

How to Serve Mexican Grilled Onions

These Mexican grilled green onions are incredibly easy to make, which is why I always serve them as a side with all of my authentic Mexican recipes like Chili con Carne, quesadillas, tostadas and even some Tajin shrimp tacos.  

You can also team these up with some avocado lime crema, a nice Elote casserole and some corn Pico de Gallo to turn it into a delicious Mexican feast. And don't forget some refreshing Pepinadas on the side.

Troubleshooting & FAQs

Can I make these without foil packets?

You can! Just remember to brush a bit of oil on the grill and on the onions to keep them from sticking to each other during the cooking process. 

How do I store leftover Mexican grilled onions?

Your leftover grilled Mexican onions can be refrigerated for up to 3 days. Just remember to use a clean airtight container to store them.

How do I reheat leftover grilled onions?

These can then be reheated in the microwave or in a pan over the stovetop. 

More Mexican Recipes

Looking for other recipes like this? Try these:

If you tried these Mexican grilled onions or any other recipe on my website, please leave a 🌟 star rating and let me know how it went in the 📝 comments below. Thanks for visiting!

Mexican Grilled Onions (Cebollitas Asadas)

These Mexican grilled onions aka Cebollitas Asadas are caramelized grilled spring onions that can be a great side dish for your Mexican barbecue!
5 from 4 votes
Prep Time 2 minutes
Cook Time 10 minutes
Total Time 12 minutes
Course Appetizer, Side Dish
Cuisine Mexican
Servings 4 servings
Calories 213 kcal

Ingredients
  

  • 12 green onions
  • 2 tablespoon soy sauce
  • ¼ teaspoon black pepper
  • ¼ teaspoon salt
  • 1 lime juiced
  • 1 tablespoon olive oil

Instructions
 

  • Wash and chop ½ inch off the tops of the green onions. Pat dry.
  • Place onions in the middle of a large sheet of foil. Season with salt and pepper and drizzle the soy sauce and oil.
  • Wrap up the onions and make foil packets. Grill the onions for about 8-10 minutes and take off heat before opening them up.
  • Transfer them to a platter and sprinkle with salt and a light drizzle of lime juice before serving.

Notes

Remember to preheat your grill before you get the foil packets in.
If you want to try a gluten free version of this recipe, just skip the soy sauce and use tamari instead. 
Remember to flip the foil packet midway through the cooking time to ensure that the onions are grilled perfectly on all the sides. 
If you want some of that extra char, open up the foil packets and transfer onions directly on the grill. Cook these on high heat for about a minute or two or until softened and lightly charred
Your leftover grilled Mexican onions can be refrigerated for up to 3 days. Just remember to use a clean airtight container to store them. 

Nutrition

Calories: 213kcalCarbohydrates: 20gProtein: 7gFat: 14gSaturated Fat: 2gPolyunsaturated Fat: 2gMonounsaturated Fat: 10gSodium: 2617mgPotassium: 549mgFiber: 6gSugar: 5gVitamin A: 1472IUVitamin C: 47mgCalcium: 136mgIron: 4mg
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5 from 4 votes (4 ratings without comment)

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