Tuna Salad with Black Beans and Corn

1 can black beans
3/4 pound ripe tomatoes, seeded and diced
6 ounces tuna, well drained and broken into chunks
1 can corn
grated zest of 1 large lime
2 tablespoons lime juice
1/4 cup olive oil
1 garlic clove, minced
1 teaspoon red Tabasco sauce
1 teaspoon green Tabasco sauce
1 teaspoon dried oregano
1 teaspoon ground cumin
1/2 teaspoon salt
2 green onions, including tops, chopped
1/4 cup cilantro, chopped
4 ounces crumbled feta.

Combine all ingredients and serve with tortilla chips.
from Take a Tin of Tuna.