Wash and dry the strawberries. Use a sharp paring knife to slice them in half, lengthwise. I like to leave the stems attached.
Again use the same paring knife to "score" or lightly cut a triangle shape in the center of each strawberry.
Then use a small spoon or small melon baller to gently remove a bit of the middle from the strawberry - to make room for the filling.
Drain the prepared strawberries, cut side down, on paper towels for a couple of minutes.
Place the prepared strawberry halves on deviled egg platters.
In a medium or large bowl, stir together the whipped cream cheese, powdered sugar, lemon zest and vanilla until very smooth. Add the cream cheese mixture to a piping bag fitted with a large piping tip. Or you could put it in a large ziploc bag and cut a small piece off the corner.
Pipe the filling into the center of each prepared strawberry. Garnish each deviled strawberry with graham cracker crumbs and sprinkles. Serve immediately.