Rinse the angel noodles (Cheonsachae) in water and set aside.
Slice carrot, onion, bell pepper, and other vegetables thinly.
Heat cooking oil in a pan and stir-fry the vegetables.
When vegetables are cooked, add the angel noodles and stir-fry together.
Season with soy sauce, vinegar, salt, and pepper.
Finish with sesame oil and sesame seeds.