Creating Spicy Korean Gochujang Noodles is simple when you follow these steps:

1. Cook the Noodles: Boil a pot of water and cook the noodles according to package instructions. Drain and set aside.
2. Prepare the Sauce: In a small bowl, mix together gochujang, soy sauce, and sesame oil. Set aside.
3. Sauté Vegetables: Heat vegetable oil in a large pan over medium heat. Add minced garlic and sauté for about 30 seconds until fragrant.
4. Add Mixed Vegetables: Toss in the mixed vegetables and cook for 3-4 minutes until they are tender but still crisp.
5. Cook Protein: If using protein, add it to the pan and cook until fully cooked through (about 5-7 minutes).
6. Combine Noodles and Sauce: Add the cooked noodles to the pan along with the prepared sauce. Toss everything together to ensure the noodles are evenly coated.
7. Heat Through: Continue to stir-fry for another 2-3 minutes until everything is heated through.
8. Serve: Remove from heat and transfer to serving bowls.
9. Garnish: Sprinkle sesame seeds and chopped green onions on top for added flavor and presentation.

These simple steps will guide you in creating a delicious bowl of Spicy Korean Gochujang Noodles effortlessly.