Start with a base Ubuntu 14.04 install, and then run:
curl -sL rt.cx/ee | sudo bash # install easy-engine
source /etc/bash_completion.d/ee # code completion in CLI
apt-get install memcached php5-memcached # install memcached and memcached php bridge (optionally also install php5-memcache)
ee system install # install nginx, php, mysql, postfix
ee site create example.com --wp # install wordpress on example.com
Source
That’s really all you need to do!