I've dined at other Mario Batali restaurants and B&B did not disappoint. During the break during his conference, my husband kept me company here for lunch (he already ate).
I ordered the orecchiette with spicy sausage and rapini and it was simple yet delicious. The pasta was cooked al dente, the spicy sausage gave it a perfect kick, and the portion was a good size for lunch -- I wasn't overly stuffed but I felt full by the end of our meal. Even though the restaurant was busy, my dish came out quickly.
The service was friendly and quick. We were able to sit on the patio area so we could people watch. I'd definitely come back again the next time I'm in Vegas to try other dishes here.