I use ground whole hops in the boil, too. The mess of whole hops, wort absorption, & monster trub pile, turned me off from using the hops I grow so I tried the old fashioned grinder (Corona mill). It only takes a few minutes to grind up a couple of ounces, the grinder cleans up quick, and I get to use a couple of pounds of my homegrown hops.
Grinding in my opinion increases the aroma and hop flavor of the beer. The floral essence of the dry hopping is intense and doesn't seem to drop out as fast as using pellets. Late boil additions & whirlpooling benefit, too. I am not sure a food processer will work as well.
I designed an IPA for newbie craft brew drinkers with Beersmith software and it is my most requested beer. It is usually the first picked beer when I pour out severel different samples.
It dry hopped with ground whole homegrown hops. I will try to get the recepie on cloud for you to enjoy, RiverBrew IPA NY
Even if you can't get whole hops, it will be tasty.