Red Onions with Lime and Soy Sauce (Taqueria Style)

Español There’s nothing quite like red onions seasoned with soy sauce, lime, and oregano to go with a good plate of carne asada tacos.

Honestly, I can’t imagine eating tacos without onions. That crunchy, tangy, flavor-packed bite combined with a juicy arrachera, ribeye, or sirloin… there’s just nothing better.

I do have my classic pickled red onions with vinegar that I love for potato tacos, but when it comes to grilled meat tacos, these taqueria-style red onions with lime and soy sauce are always the winner.

Ingredients

1 red onion, thinly sliced
⅓ cup fresh lime juice
2 tablespoons soy sauce
1 teaspoon dried oregano
½ tablespoon salt (or to taste)
2 serrano peppers

How to Make Red Onions for Tacos

Slice the onion

Thinly slice the red onion so it absorbs all the flavor.

Prepare the base

Place the onion in a bowl and add the lime juice, soy sauce, oregano, and salt.

Prepare the peppers

Lightly roast or sauté the serrano peppers.
Remove the skin and seeds, then slice them thinly.

Mix everything

Add the sliced peppers to the onions and mix well so everything is evenly coated.

Let it rest

Let sit for at least 30 minutes, stirring occasionally.
Refrigerate for a stronger, deeper flavor.

Tips for the Best Taqueria-Style Onions

Use freshly squeezed lime juice for the best flavor
Slice the onion as thin as possible
Adjust the heat by adding more or less serrano peppers
Let them rest longer for softer texture and more flavor
What to Serve with These Onions

These lime and soy sauce onions for tacos are perfect with:

Carne asada tacos
Skirt steak (arrachera) tacos
Ribeye or sirloin tacos
Quesadillas and burritos

Red onion with lime and soy sauce

Learn how to make red onions for tacos with lime and soy sauce. A quick and flavorful topping perfect for carne asada and Mexican dishes.

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Pin Recipe Print Recipe

Prep Time 5

Course Dips, Aderezos, Salsas

Cuisine Mexican

Ingredients

1 red onion
1/3 cup fresh lime juice
2 tbsp soy sauce
1 tsp dried oregano
1/2 tbsp salt
2 serrano peppers

Instructions

Thinly slice the red onion so it absorbs all the flavor.
Place the onion in a bowl and add the lime juice, soy sauce, oregano, and salt.
Lightly roast or sauté the serrano peppers.Remove the skin and seeds, then slice them thinly.
Add the sliced peppers to the onions and mix well so everything is evenly coated.
Let sit for at least 30 minutes, stirring occasionally.
Refrigerate for a stronger, deeper flavor.