Avocado Tomato Onion Salad

Featured in: Crisp and Refreshing

Enjoy a vibrant blend of ripe avocados, juicy tomatoes, and zesty red onion. Finished with fresh lime juice and chopped cilantro, this colorful salad offers bright flavor and creamy texture, ideal for light meals or as a flavorful side. Each ingredient is combined gently to preserve freshness and keep the avocado intact. A sprinkle of salt balances the zesty lime and herbal cilantro, creating a refreshing bite in every forkful. Serve immediately to savor the best combination of taste and texture.

A woman is sitting at a table with a plate of food in front of her. The plate contains a dessert with berries on top.
Updated on Fri, 24 Oct 2025 23:11:43 GMT
A bowl of freshly prepared Avocado Tomato Onion Salad, featuring a mix of vibrant colors and flavors. Pin it
A bowl of freshly prepared Avocado Tomato Onion Salad, featuring a mix of vibrant colors and flavors. | recipebyme.com

There is nothing better than a fresh avocado tomato onion salad when I want something easy crisp and full of flavor. This is my go to side for busy weeknights or when friends drop by unexpectedly. Everything gets tossed together in one bowl letting the velvety avocado balance the tangy tomatoes and the sharp bite of red onion.

I whipped this up the first time for a barbecue with my family and it disappeared before I could even sit down. Now everyone asks me to bring it to picnics.

Ingredients

  • Ripe avocados: choose dark skinned fruit that yields slightly when pressed for creamy texture
  • Medium tomatoes: pick bright fragrant tomatoes as they bring juicy sweetness
  • Small red onion: look for firm onions with glossy skin which add a mild peppery crunch
  • Fresh lime juice: use a juicy lime for a punch of citrus that keeps the salad bright
  • Fresh cilantro: go for vibrantly colored leaves without wilting for herbal flavor
  • Salt to taste: use flaky sea salt for clean seasoning that lifts all the other flavors

Instructions

Prepare the Avocados:
Cut each avocado in half lengthwise and twist to separate. Remove the pit with a spoon or knife. Use a small knife to score the flesh in a grid pattern then scoop out the cubes. Try not to mash the pieces as a gentle touch keeps the salad looking beautiful.
Dice the Tomatoes:
Rinse the tomatoes and pat dry. Slice them in half then use a sharp knife to cut them into bite size pieces. If tomatoes are very juicy you can gently squeeze out a little extra liquid to avoid sogging the salad.
Slice the Onion:
Peel the red onion and trim off the ends. Using a sharp knife or mandoline slice it as thinly as you can for best texture. If you find raw onion too strong soak the slices briefly in ice water to mellow the bite then drain.
Combine the Ingredients:
In a large mixing bowl combine the avocado cubes tomato pieces and sliced onion. Add freshly squeezed lime juice and chopped cilantro. Use clean hands or a silicone spatula to gently toss until everything is just combined.
Season and Serve:
Sprinkle over a generous pinch of salt to make the flavors pop. Taste and adjust with more lime or salt as needed. Serve right away for the perfect crisp texture.
A bowl of freshly chopped vegetables, including tomatoes, onions, and avocado, is garnished with cilantro and lime.
A bowl of freshly chopped vegetables, including tomatoes, onions, and avocado, is garnished with cilantro and lime. | recipebyme.com

The creamy avocado is my favorite part since it ties the whole salad together. My kids love mashing a little extra avocado on their grilled bread right alongside this dish so it never lasts long in our house.

Storage Tips

This salad is best enjoyed fresh because the avocados can brown quickly. If you need to make it a couple of hours ahead cover tightly with plastic wrap on the surface of the salad and store in the refrigerator. For leftovers toss with a little more lime juice to help the avocado stay green.

Ingredient Substitutions

If you do not have red onion try sweet onion or even thinly sliced green onions for a milder touch. Parsley will work in place of cilantro for a different flavor profile. Cherry tomatoes can stand in for regular tomatoes especially when they are extra ripe.

Serving Suggestions

Serve this salad alongside grilled meats fish or as part of a picnic spread. I love scooping it onto slices of toasted baguette for a simple appetizer. It is also delicious tucked inside tacos or spooned over a bowl of warm rice.

Cultural and Historical Context

Avocado tomato onion salads are a staple in many Latin American kitchens where the freshest ingredients shine without fuss. This minimal approach highlights what is best from local markets especially in hot weather. My family comes together around the table with simple dishes like this reminding us that sharing food can be more about the company than complexity.

Seasonal Adaptations

If tomatoes are not in season use heirloom cherry tomatoes for extra sweetness Add a pinch of crushed red pepper in summer for gentle heat In winter toss in baby spinach leaves for more color and vitamins

Success Stories

Two of my neighbors asked for this recipe after a backyard gathering and now it has become a regular at our neighborhood potlucks. Even friends who claim they dislike onion end up loving it when sliced this thin. I always smile when I see people sneak seconds.

Freezer Meal Conversion

This salad is not a good freezer candidate since avocados lose their creamy texture and tomatoes weep after thawing. For meal prep keep the ingredients separate and combine just before serving to maintain freshness.

A bowl of freshly prepared salsa with tomatoes, onions, and avocado.
A bowl of freshly prepared salsa with tomatoes, onions, and avocado. | recipebyme.com

Keep this recipe in your back pocket and you will always have a crowd–pleasing salad that brings everyone to the table. A few fresh ingredients is all it takes for something truly memorable.

Recipe FAQs

→ How do I keep avocados from browning?

Adding lime juice helps prevent oxidation, keeping avocados vibrant. Serve promptly for best results.

→ Can I prepare this salad in advance?

It's best enjoyed fresh. You can prep ingredients separately and combine them just before serving.

→ What other herbs complement this salad?

Fresh parsley or basil can offer delicious variations alongside or instead of cilantro.

→ Is the salad suitable for vegan or gluten-free diets?

Yes, all listed ingredients are both vegan and naturally gluten-free.

→ What can I serve with avocado tomato onion salad?

This salad pairs well with grilled meats, tacos, or as a light standalone dish.

Avocado Tomato Onion Salad

Avocado, tomato, and onion tossed gently with lime and cilantro for a refreshing and colorful dish.

Prep Time
10 min
Cook Time
~
Total Time
10 min
By: Sana

Category: Fresh Salads

Skill Level: Easy

Cuisine: Mexican

Yield: 4 Servings (4 side servings)

Dietary Categories: Low-Carb, Vegan, Vegetarian, Gluten-Free, Dairy-Free

Ingredients

→ Produce

01 2 ripe avocados
02 2 medium tomatoes
03 1 small red onion
04 1 lime, juiced
05 1/4 cup fresh cilantro, chopped

→ Seasoning

06 Salt, to taste

Steps

Step 01

Cut avocados in half, remove the pits, and dice the flesh into bite-sized pieces.

Step 02

Dice tomatoes into even pieces and thinly slice the red onion.

Step 03

In a large mixing bowl, gently combine the diced avocados, diced tomatoes, and sliced red onion.

Step 04

Drizzle the lime juice over the mixture and sprinkle with the chopped cilantro.

Step 05

Toss the ingredients gently to ensure even distribution, taking care not to crush the avocados.

Step 06

Season with salt to taste and serve immediately for optimal freshness.

Notes

  1. Use ripe but firm avocados to maintain the best texture in the salad.

Required Equipment

  • Chef’s knife
  • Cutting board
  • Large mixing bowl
  • Spoon

Nutritional Info (per serving)

This data is provided as a guide and doesn't replace medical advice.
  • Calories: 180
  • Fats: 12 g
  • Carbohydrates: 14 g
  • Proteins: 3 g