Prep time is 10 minutes and cook time is 30 minutes, making 6 to 8 servings. If using salt-free taco seasoning, add 1/2 teaspoon kosher salt while seasoning the chicken, and an additional 1/2 teaspoon for the vegetables. This casserole can be stored in the fridge in an airtight container for up to 4 days or frozen for up to 1 month. To reheat, thaw it overnight in the refrigerator and heat in a 350°F oven for 20 to 25 minutes until warmed through.