Mountain Lion, EFI and Intel SSD Toolbox
Delete the EFI partition, do your secure erase, then don't partition or format the drive from Windows 7. Instead, boot from the OSX installer disk or recovery environment, and use its version of Disk Utility to partition the drive, using the GUID partition scheme. Disk Utility will create the EFI partition for you if done this way.

To be clear: the EFI partition doesn't contain any useful data - in fact it's generally completely empty - but it's used by OSX and the Mac's bootloader for installing firmware updates. This is why the installer complains if it doesn't exist.