Quick: Breakfast suggestion, Chestnut Hill
Sounds like a lovely way to spend a weekday!
Here are 2 suggestions, both within easy walking distance from Regional Rail:
Cake - located in the solarium of Robertson's florist shop. Baked goods and breakfast options featuring local ingredients. (SEPTA R7)
8501 Germantown Ave. (Highland Ave.) Philadelphia, PA 19118 (215-247-6887)
French Bakery - small, off the beaten path. It is not directly on Germantown avenue; follow a small walkway to a cluster of shops behind the main drag (SEPTA R8)
8624 Germantown Ave.