Brilliant!! This space is created by opening the space between the studs in the wall. Small, skinny spot, but look at all of the fabulous storage with small pantry items that take forever to find - a great idea to steal space and have a big impact. Love the medicine cabinet idea. There are TONS of ideas on this.
before & after: repurposed horse stall doors | Design*Sponge
Add space-saving functionality by incorporating a slide-out cutting board on wheels. More kitchen makeovers: http://www.bhg.com/kitchen/remodeling/makeover/kitchen-remodeling-pictures/?socsrc=bhgpin122712=9