Place pastry on floured surface; roll out with rolling pin to flatten.
Brush top and side of cheese wheel with mustard; sprinkle evenly with almonds.
Place, almond-side down, on center of pastry sheet. Gently fold pastry around cheese to completely enclose cheese, trimming excess pastry if necessary. Reserve trimmings for later use. Seal edge of pastry.
Place, seam-side down, on greased baking sheet. Use sharp knife to cut out desired decorative shapes from pastry trimmings; arrange on top of cheese.