Depending upon the context of your dream, roasted meat may symbolize the following;
To dream of roasted food stuff like mutton, chicken, beef, lamb etc. then it is a sign that dreaming person will get a rise in income, wages or earnings.
To eat roasted chicken in dream is a sign of gathering wealth from woman with treachery and cheating.
To eat roasted fish in dream is a sign of travel to receive education and get acquaintance with some scholarly person.
To see a person selling roasted meat in dream is symbolic of a person who can enhance the earnings of ordinary people.
To eat roasted lamb in dream is a sign of getting wealth, money with some extraordinary effort and discomfort.
To eat roasted meat of cow in dream is a sign of future peace and valor.