Smoked Salmon Grain Bowl With Sweet Potatoes

Name: Smoked Salmon Grain Bowl With Sweet Potatoes
Ingredients: 1 large sweet potato, cut into 1-inch pieces; 2 tablespoons sesame oil, divided; Kosher salt; 1 cup whole farro, rinsed; 1 scallions, thinly sliced; 2 tablespoons lemon juice; 2 tablespoons tamari; 1 tablespoons tahini; 1 teaspoon honey; 4 stalks celery, thinly sliced , (about 1 1/2 cups); 1/4 small red cabbage, thinly sliced , (about 2 cups); 1/2 small bunch collard greens, stems removed and leaves thinly sliced , (about 2 cups leaves); 1 endive, thinly sliced; 8 ounces hot-smoked salmon, broken into large pieces