Preheat your oven to 375°F. Line a baking sheet with parchment paper.
Wash and remove the stems from the mushrooms, set aside.
In a mixing bowl, combine the cream cheese, crabmeat, bread crumbs, Parmesan cheese, minced garlic, and Worcestershire sauce. Mix until well blended.
Spoon the crab mixture into each mushroom cap, mounding it slightly.
Arrange the stuffed mushrooms on the prepared baking sheet. Bake for 20-25 minutes, or until the mushrooms are tender and the filling is golden brown on top.