In a large mixing bowl, combine frozen corn, red onion, and chopped celery. Add diced Roma tomatoes, diced English cucumber, and diced colored bell peppers. Include chopped cilantro and diced ripe avocados. Gently toss the veggies together.

In a separate small bowl, whisk together lime juice, olive oil, and sugar. Add in coarse salt, adjusting to taste. Mix until the sugar dissolves completely.

Pour the dressing over the mixed vegetables in the large bowl. Gently fold the dressing into the salad.

Taste your salad and add additional salt if desired. Check for flavor balance and adjust with more lime juice if you prefer.

Cover the salad and place it in the refrigerator. Chill for at least 30 minutes, up to 2-3 hours.

Once chilled, give the salad a quick stir. Serve as a side dish, topping for tacos, or with tortilla chips.