In a small bowl, whisk together teriyaki sauce, broth, garlic, ginger, honey.
Place chicken breasts in the slow cooker insert coated with cooking spray. Pour the teriyaki mixture over the chicken.
Cook on HIGH for 3-4 hours or LOW for 6-8 hours, until chicken is tender.
Remove and shred with two forks. Return shredded chicken along with red bell pepper, snow peas, and carrots, cooking for an additional 20 minutes until the vegetables are crisp tender.
Whisk together cornstarch and water in a small bowl and pour into the slow cooker, allowing to simmer until the sauce is thickened. Toss in cooked noodles and garnish with sesame seeds if desired.