It is common that we will have 'Lousang' with family and friends during Chinese New Year. Have you give a thought that rather than having the conventional dish, you can be creative and add some other food or replacement into it. Think of raw vegetables, nuts and fruits. As for the meat, you can choose your favorite meat.
Tossing the Lousang symbolises good luck and good wealth in the coming chinese new year and the fish symbolise the wish for a year full of abundance of everything. It is also not cheap in ordering the dish in restaurants, so do consider to make your own Lousang, with your favorite food and it is more healthy!