Here they all are, thanks to the ever excellent @chelseayouth. (Three goalkeepers had also gone on loan this season, but, unsurprisingly, they didn't score any goals.)
Lots of early season success for all the Chelsea boys at Vitesse and young Mario Pasalic at Monaco before a back injiury took him out of contention and limited his appearances in the second half of the season. His seven goals were still only bettered by Marco van Ginkel's eight (all since January), who was instrumental in PSV vaulting ahead of Ajax for the Eredivise title.
Juan Cuadrado was also a title winner, in Italy. His 38 appearances for Juventus this season were only eclipsed by young center back Andreas Christensen's 39 for Borussia Mönchengladbach. Christensen was a key cog in Gladbach's domestic and European campaigns and will look to do that next season well.
Full pertinent stats on the loan army can be found here, including minutes and goals data.