Make a strawberry coulis by simmering some chopped strawberries and a handful of caster sugar, for approximately 8 minutes until soft. "Mush" (technical term there) with a fork until you have a thick sauce.
Now whip up some cream with a drop of vanilla extract. Fill the cases with the cream. Top with some coulis, fresh strawberries, and a good drizzle of more coulis.
And by all means, if you have more time and haven't been at work all day, make your own pastry. You'll be the better person for it.