Cook the udon noodles according to the package instructions, typically boiling for 5-6 minutes until tender. Drain and rinse under cold water. Set aside.

Heat sesame oil in a skillet over medium-high heat. Add sliced chicken and sauté for 5-7 minutes until golden brown and cooked through. Remove and set aside.

In the same skillet, stir-fry the bell peppers and carrots for 3-4 minutes until tender yet crisp. Avoid overcooking.

Return the chicken to the skillet and add the udon noodles with soy sauce and vegetable broth. Toss gently for 2-3 minutes until well combined.

Add minced garlic and stir for another minute. Remove from heat and garnish with chopped green onions.

Plate the Yaki Udon noodles and optionally drizzle more soy sauce. Enjoy your homemade meal!