Where should a chef insert a thermometer to check the temperature of a chicken and noodle casserole?

Inserting a thermometer into the center or thickest part of the casserole is the most effective method for accurately measuring the internal temperature of the dish. This area typically reflects the highest temperature and ensures that the food has reached a safe internal temperature throughout, which is crucial for preventing foodborne illnesses.

When cooking, the center of a dish often takes the longest to heat, so checking here guarantees that all components, including the chicken, have reached the necessary temperature to be considered safe for consumption. If the thermometer were placed at the bottom of the dish or near the lid, it might not give a true reading, as these areas could be either too cool or too warm, failing to reflect the overall temperature of the casserole. Thus, checking at the thickest part is the recommended practice for accurate temperature assessment.