While it's not one of the "classic" Boy Meets World episodes, it contains pivotal plot development as well as enough laughs to hold its own.
In this episode Shawn and Cory help a timid Mr. Feeny show his true feelings for Dean Bolander. As Feeny and Bolander would find true love, later in the series, this episode was very important. This episode also reveals an often unseen side of Mr. Feeny.
The antics of the Cory-Shawn duo are enough to carry the episode on their own. The mafia bake sale and the science lab scenes were classics. One of my favorite episodes.