Add the chicken broth, teriyaki sauce, soy sauce, 1 TBS of the cornstarch, brown sugar, garlic, ginger, and sesame oil to a small bowl and whisk them together.
Cook the noodles according to their package directions, cooking them 1 minute less than directed on package as they’ll continue cooking when added back to the mixture. Drain out the water, and toss them with oil to keep them from sticking together.
Cut the chicken into bite sized pieces.
Place the chicken and the remaining cornstarch in a large ziplock bag. Seal the bag and shake it up to evenly coat.
Add 1 TBS olive oil to the large skillet over medium high heat.
Cook the chicken for about 4 minutes, stirring occasionally, or until golden brown and cooked through, remove from the pan and set aside.
Add another 1 TBS of olive oil to the skillet and add the broccoli, snap peas, and bell pepper, and cook it for about 5 minutes, stirring occasionally, until they are crisp tender.
Restir the sauce, and add it to the skillet with the vegetables. Cook it all for a couple of minutes until the sauce is thickened.
Add in the chicken and noodles, and stir to coat them in the sauce.
Serve hot.