Start a heating a large pot of water on the stove to cook the pasta in. While that comes to a boil,
heat a large skillet over medium high heat. Add 1 tbsp oil to the skillet along with the chicken. Cook for about 10 minutes until chicken is cooked and lightly brown.
Remove the chicken from the skillet and set aside. Then add remaining 1 Tbsp of oil to the skillet and add the carrots, zucchini, mushrooms, and red onion. Cook veggies until just tender. Re turn chicken to the pan and turn off the heat.
Add pasta now to the boiling water and cook according to package directions.
While the pasta cooks, add all of the sauce ingredients to a sauce pan and cook over medium heat while whisking until it thickens.
Add enough of the sauce to the chicken and veggies until it is well coated. Serve over cooked pasta. Serve remaining sauce on the side for those who want more sauce. Serves 6-8