I'm trying the brunch at Goldfish Oyster Bar and Restaurant in Ossining tomorrow... I have high hopes! Don't know if this is helpful for this weekend, but maybe another time. http://goldfishdining.com/brunch.pdf
Replying to myself to follow up that I had a great brunch at Goldfish-- the entire staff is friendly and accommodating and everything I ate was delicious. I don't know where they get their croissants, but they are buttery, flaky, EXCELLENT.