Marinated Black Beans - cooking recipe

Ingredients

1 cup cooked black beans (may use canned, rinsed and drained)
1 small tomatoes, peeled, seeded and diced
2 green onions, thinly sliced, white part only
1 serrano chili, seeded and minced
2 teaspoons chopped fresh cilantro (or to taste)
1 garlic clove, minced
2 tablespoons herb vinegar
6 tablespoons olive oil
2 tablespoons diced avocados
salt

Preparation

Combine first 8 ingredients in nonaluminum bowl;let stand at least 30 minutes to allow flavors to blend.
(Can be prepared 2 days ahead, covered and refrigerated.).
Just before serving, fold in avocado and season with salt to taste.