Buckwheat, Tuna and Artichoke Salad - Oryana

Ingredients

• 1 cup kasha (toasted buckwheat groats)
• 1 teaspoon salt, divided
• 2 cups water
• 2 tablespoons extra virgin olive oil
• 1 tablespoon fresh lemon juice
• 1 tablespoon Dijon mustard
• 1 teaspoon tarragon
• 3 green onions, finely chopped
• 1 tablespoon capers or green olives, sliced
• ¼ teaspoon pepper
• 1 14-oz can artichoke hearts, drained
• ¼ pound mushrooms, sliced
• 1-7 oz can water packed tuna, drained and flaked