Creating Yaki Udon Noodle is simple if you follow these easy steps:

1. Cook the Noodles: In a large pot, bring water to a boil. Add the udon noodles and cook according to package instructions. Drain and set aside.
2. Heat the Oil: In a large skillet or wok, heat the vegetable oil over medium-high heat.
3. Sauté the Protein: Add your choice of protein to the skillet. Stir-fry until cooked through, about 5-7 minutes. Remove from the skillet and set aside.
4. Cook the Vegetables: In the same skillet, add the sliced bell peppers, carrots, broccoli, and mushrooms. Stir-fry for 4-5 minutes until the vegetables are tender but still crisp.
5. Add Garlic: Add the minced garlic to the vegetables and sauté for an additional 1-2 minutes until fragrant.
6. Combine Everything: Return the cooked protein to the skillet with the vegetables. Add the cooked udon noodles.
7. Add Sauces: Pour the soy sauce, oyster sauce (if using), and sesame oil over the noodle mixture. Toss everything together to ensure the noodles and vegetables are evenly coated.
8. Final Touches: Cook for an additional 2-3 minutes, stirring frequently, until everything is heated through.
9. Garnish: Remove from heat and garnish with chopped green onions and sesame seeds.

Following these steps will guide you in creating this incredible Yaki Udon Noodle effortlessly.