The first question you probably have is how long to bake chicken tenderloin. There are several ways to cook chicken, including grilling, frying, and roasting. You can also marinate chicken tenderloins up to two days ahead. The key to a successful roasting is following the package instructions and the temperature.
Marinate the chicken tenderloins for 30 minutes to 4 hours in advance, if possible. You can also use a nonstick spray instead of a cooking spray. Tenderloins may vary in thickness, so check them after 12 minutes, and thick ones may need to cook for up to 20 minutes.