"My GF daughter swims in a meet in Buffalo every winter. We do not venture far from the hotel due to time constraints but this is where we return to year after year:
Osteria 166: really great Italian food and fabulous salads
Merge: just really delicious options
Spot coffee: fair prices, good GF wraps and lots of fun coffee drinks (slow service at lunch)
Sear: this is more upscale and is in a hotel (often yucky but not this one) but we always need somewhere to eat Sunday night and she has never gotten sick from their food
Patina 250: only had brunch there once but the food was good she had a giant smoothie and some eggs no problems
All of these places are within walking distance from the Westin. You probably already know this but around this area it is safe to walk at night but just a handful of blocks towards down town it is not a good idea to walk at night."