I also love Mustard Seed. The selection is incredible - this is NOT your run of the mill tiny organic food shop. It is like a "real" grocery store, with butchers and a Sushi chef, and cheese samples and a deli with all sorts of yummy things to buy by the pound. An added bonus is that they buy local organic produce, and they take Ohio food stamps, so poorer folks can still enjoy a wide selection of organic products.
The Cafe is INCREDIBLE. At first glance, it may seem overpriced - but the food is organic and natural-raised meats and locally grown when possible. I highly recommend the natural beef burgers, the tuna wraps, and the fresh juice smoothies (the Razzmatazz is stellar!) They also have brunches on special occasions that are wonderful.