Accretion outbursts in young stars come in many different forms, most notably long term FUor an short term EXor outbursts. Such outbursts have a profound effect on the dusk structure and composition, which in turn greatly impacts planet formation. It is now thought thar most young stars will go though an outburst phase, meaning our undrrstanding of these mechanisms must improve. In this talk, I will present an interferometry view of the inner disk of 4 FUor objects and explore how the outburst has effected the thermal and spatial structure of the disk. This includes evidence of boundary layer accretion and viscous heating in the inner disks of these unusual objects.