5 pickling cucumbers, peeled, ends trimmed, and cut into 1/4-inch cubes
1 small red onion, cut into 1/4-inch cubes
1 large tomato, cored, seeded, and diced
1 bunch Italian parsley leaves, chopped
2 bunches mint leaves, chopped
1/2 cup extra-virgin olive oil
1/4 cup red wine vinegar
1 lemon, juiced
1 1/2 teaspoons salt
3/4 teaspoon freshly ground black pepper
4 heads endive, trimmed and separated into individual spears
1 avocado, peeled, seeded and diced, for garnish
Bring the water to a boil in a large saucepan. Add the quinoa, stir once, and return to a boil. Cook uncovered, over medium heat for 12 minutes. Strain and rinse well with cold water, shaking the sieve well to remove all moisture.
When dry, transfer the quinoa to a large bowl. Add the cucumbers, onion, tomato, parsley, mint, olive oil, vinegar, lemon juice, salt, and pepper and toss well. Spoon onto endive spears, top with avocado, and serve.