For the dressing

• 2 Tbs. extra-virgin olive oil
• 2 Tbs. fresh lime juice
• 1/2 tsp. kosher salt
• 1/4 tsp. freshly ground black pepper

For the salad

• 1 pint cherry or grape tomatoes, halved
• 1 small cucumber, peeled, seeded, quartered and cut into 1/2-inch pieces
• 1⁄4 red onion, finely chopped
• 2 ripe avocados, diced
• 1/2 tsp. kosher salt
• 1/4 tsp. freshly ground black pepper