Is there a version of EasyMiner for Mac?
I don't know whether EasyMiner will be ported to Mac. But there will be several other miners supporting the BitForce Jalapeno and other BFL ASIC products.

If you want a user-friendly alternative you may want to try out BitMinter client. It has been thoroughly tested with BFL FPGAs mining on Macs. Support for BFL ASICs will be added as soon as possible. This miner is available from http://bitminter.com. I am the author of this miner.