Need Recommendation for 8 in/near Briarcliff Manor
Umami Cafe in Croton fits your bill. While they don't normally take reservations, call 914.271.5555 to let them know you'd be a party of 8. www.umamicafe.com
Also in Croton is Justin Thyme (914) 271-0022 www.justinthymecafe.com.
Both places are casual with very good food. Better than very good. And while they'll be busy because it's Saturday, you won't be competing with other Briarcliff graduation folks.
Another option, although it depends on how late you'll be, is Wobble Cafe in Ossining. They serve dinner only a few nights a week (they're mostly a breakfast and lunch place), so it tends to be off people's radar. (914) 762-3459 www.wobblecafe.com Food is great, and it's BYOB.
171 Grand St, Croton On Hudson, NY 10520
Flames is a good steakhouse, Amalfi and Terra Rustica are decent Italian. Spacarellis in nearby Millwood is a nicer setting and better food for Italian, but pricier.All can accomodate the 8 people. If you go towards Chappaqua, Pleasantville or eve Mt.Kisco there are also many more options
550 N State Rd, Briarcliff Manor, NY 10510
197 Forest Ave, Glen Cove, NY 11542