Lebanese Fattoosh
1 cucumber, diced 1 cup sliced green olives 1 green or red bell pepper, chopped 1 head romaine lettuce, chopped 1 tablespoon salt, or to taste 2 green onions, thinly sliced 2 pita breads, halved 2 tablespoons sumac 2 tomatoes, diced 4 radishes, sliced ¼ cup chopped fresh mint ¼ cup fresh lemon juice ¼ cup olive oil