Is frozen filet tilapia cooked if only baked for 12 minutes?

Frozen filet tilapia is not fully cooked if it has only been baked for 12 minutes, as the cooking time can vary based on the thickness of the filet and the oven temperature. Generally, tilapia should be cooked until it reaches an internal temperature of 145°F (63°C) and flakes easily with a fork. It's important to ensure it is cooked through for safety and optimal flavor. Always check for doneness before consuming.