12 oz. dried rice noodles
5 tbsp. canola or peanut oil
6 tbsp. sesame oil
1 large white onion, halved and thinly sliced
1 large leek, white part only, rinsed, halved, and very thinly sliced
5 to 6 green onions, cut diagonally into 1/2-inch-long pieces
1 red bell pepper, seeded, deribbed, and cut into slices
1 green bell pepper, seeded, deribbed, and cut into slices
5 cloves garlic, minced
1/2 cup rice wine vinegar
3 tbsp. soy sauce
3 tbsp. tamari sauce
3 tbsp. fish sauce
2 tbsp. minced fresh ginger
1 tsp. cornstarch, optional
3 tbsp. chopped fresh cilantro