When you press ctrl-opt-command-n, this workflow opens nvalt and types in "scratch" followed by 6 random numbers as the note name.

For example, it might type "scratch 260103".

It doesn't press <return> to create the note, so you can edit the note name.

If you use this workflow, in the nvALT preferences window under the tab "General", uncheck "Quit when closing window.".  This workflow closes the nvALT window and re-opens it to pull it to the current space.