Why 3 stars? Because things just aren't what you expect.
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I'm all about things being unique... I'd say I even go out of my way to find uniqueness in restaurants. But there's a certain line that gets crossed, in which an apple is no longer even an apple. It's an orange.
The wings at Greenhouse look like wings, for the most part. But they don't taste remotely like the wings that most people know. They are citrusy, dry, and fall apart as you touch them. More so than wings, I'd describe them as lemon chicken flakes. They did not float my boat.
I kept is simple for my main entree by ordering a burger. There was some funky cheese present that kind of overwhelmed each bite. It was ok at best.
To be honest, I'm probably rounding up to 3 stars here. The menu is interesting enough that if I lived in Cleveland, I'd go back and try some different things, but I've got quite the commute ahead of me to make a return trip.