How can I encourage my picky cat, who only likes to lick the gravy from his wet food, to eat the entire meal and not just the gravy?

One way to encourage your picky cat to eat the entire meal is to gradually mix in small amounts of the wet food with the gravy. Over time, increase the amount of food mixed in until your cat is eating the entire meal. This can help your cat get used to the texture and taste of the food, making it more likely to eat the whole meal.