Creating Easy Baked Butterfly Shrimp is straightforward if you follow these simple steps:

1. Preheat the Oven: Set your oven to 400°F (200°C) and prepare a baking sheet with parchment paper or a light coat of cooking spray.
2. Prep the Shrimp: Rinse the shrimp under cold water and pat them dry with paper towels. This ensures the coating adheres better.
3. Butterfly the Shrimp: If not already butterflied, slice the shrimp down the back, stopping just before cutting through. This will help them cook evenly.
4. Make the Coating: In a bowl, mix the breadcrumbs, grated Parmesan cheese, garlic powder, onion powder, paprika, salt, and pepper until combined.
5. Dredge the Shrimp: In a separate bowl, whisk together the egg and milk. Dip each shrimp into the flour, then into the egg mixture, and finally into the breadcrumb mixture, pressing down to ensure an even coat.
6. Arrange on Baking Sheet: Place the coated shrimp on the baking sheet in a single layer, ensuring they are not overcrowded for better cooking.
7. Add Oil: Lightly spray or drizzle olive oil over the shrimp to promote browning and crispiness.
8. Bake: Put the baking sheet in the preheated oven and bake for about 15-20 minutes, or until the shrimp are opaque and the coating is golden brown and crispy.
9. Garnish: Once cooked, sprinkle with fresh parsley if desired and serve immediately.

These straightforward steps will help guide you in effortlessly creating this delicious dish.