As the shells bake, they usually puff up a little bit. You can break off pieces from the top and then fill the shell with the whipped cream, top with strawberries and then place the meringue pieces on top. If the shells didn't raise enough to break off pieces, you can certainly just pile the whip cream in the pie plate without breaking off meringue pieces.
I did cook my shell a little longer than normal so it's a little darker than usual. So if yours isn't this color after baking it, don't panic. If you like a crispier shell, you certainly can cook it a bit longer until it gets this color. I like it either way.