After making this colorful photo of cauliflower, I followed up today with the monochrome shown below.
Setup
The tabletop and background are a single sheet of translucent vellum. That material creates extremely soft reflections in the tabletop. A small continuous-light lamp on the left rear lights that side of the background. The bounced light backlights the large piece of cauliflower at an angle that also bounces to light the far right piece of cauliflower and casts its long shadow. A medium continuous-light lamp on the left front adds light to that side of the overall scene and especially to that side of the middle piece of cauliflower. A white reflector on the right side lifts the shadows on that side of all three pieces of cauliflower.