See their website on http://www.theoldbrewery.com.au/our-story/tomahawk/
The meal can come as a set meal at $100 per person. Appetizers were prosciutto, smoked salmon, prawns and condiments.
Do you gain weight over your holidays? There maybe some truth it that. See NEJM Study of prospective holiday weight gain The weight gain may be more if we don't increase activity after a fine meal.