Korean Glass Noodles - Jap Chae

INGREDIENTS

• 1/2 pound dried Korean sweet potato noodles
• 2 1/2 teaspoons sesame oil, divided
• 1 tablespoon cooking oil
• 3/4 cup thinly sliced onions
• 2 carrots, cut into matchsticks
• 2 cloves garlic, very finely minced
• 3 stalks green onions, cut into 1" lengths
• 1/2 cup fresh mushrooms, thinly sliced (shiitake or wood ear)
• 1/2 lb spinach, washed well and drained
• 2 tablespoons soy sauce
• 2 teaspoons sugar
• 1 tablespoon sesame seeds