There was a variety of dress codes seen when I was there. I recommend business casual
No dress code. Wide range of dress from Prom attire (at those times) to very casual.
No though business causal would be best.
So there is no dress code but Green Valley Grill is no Chili's. The expectation of your attire is definitely business casual. Anything less you will feel out of place.
I normally dress casual/business casual to eat here.
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