There was a young woman who was a chef and she wasn't the greatest. Then she meet someone and she wanted to be better at chef and then there was a lobster that was magical and helped her be the best chef in town and get her guy! What is the name of this movie?

Simply Irresistible (1999) (http://www.imdb.com/title/tt0145893/)

Except it was a crab, not a lobster...