Step 1

In a large microwave-safe bowl, toss the beans with 1 teaspoon salt. Cover and microwave on high until hot, 3 to 3½ minutes, stirring once halfway through.

Step 2

To the hot beans, add the garlic, onion, vinegar, oil, 2 teaspoons salt and ¾ teaspoon pepper; toss to combine. Let stand until cooled to room temperature, about 30 minutes, stirring once or twice.

Step 3

Stir the beans once again, then stir in the avocado, parsley, dill and lemon zest and juice. Taste and season with salt and pepper. Transfer to a serving bowl and drizzle with additional oil.