Step #18 Heat a nonstick skillet coated with cooking spray over medium-high heat.
Step #19 Add garlic; sauté 30 seconds.
Step #20 Add 1/2 tsp salt & corn; sauté 3 mins.
Step #21 Add to poblanos; let this stand 5 mins.
Step #22 Stir in cheese.
Step #23 Roll each dough portion into a (5-inch) circle.
Step #24 Working with 1 circle at a time (cover remaining circles with a damp towel to prevent drying), spoon 3 level tbsps corn filling into center of each circle.
Step #25 Moisten edges of dough with water; fold dough over filling.
Step #26 Press edges together with a fork or fingers to seal.
Step #27 Place empanadas on a large baking sheet coated with cooking spray.
Step #28 Combine egg white & 1 tbsp water.
Step #29 Lightly coat tops of empanadas with egg mixture.
Step #30 Pierce top of dough with a fork.
Step #31 Bake at 425° for 20 mins or until lightly browned.