Divide crescent dough into 8 triangles. Spread each crescent with 1 teaspoon cream cheese.
Top with a piece of prosciutto. Place 3-4 asparagus spears at wide end of crescents; roll up. Place on a greased baking sheet. Brush tops with egg.
Bake in a preheated 375°F oven 11-13 minutes or until golden brown.