AFAIK currently there is no straightforward dashboard in Azure portal but with the help of Activity Logs or resources REST API you can get the information on who created a resource and when was a resource created. For more information w.r.t it, refer this and this articles.
Regarding feature to have a straightforward dashboard in Azure portal, if interested, raise a feature request in this uservoice / feedback forum. In general, Azure feature team would check feasibility of a feature request, prioritize against existing feature backlog, add in roadmap as appropriate and would announce and/or update the related Azure document once a feature request is addressed.