Chilled Mediterranean Green Beans and Tomatoes

Ingredients

• 1 pound green beans (fresh)
• 1 teaspoon salt
• 1 pound ripe fresh tomato (preferably heirlooms of mixed color)
• 1 teaspoon olive oil
• 1/2 medium red onion
• 1 clove garlic (minced)
• 1/8 teaspoon dried ground chipotle powder (optional)
• 1 teaspoon mustard (bottled)
• 3/4 cup black olives (pitted)