Start by preheating your oven to 400°F (200°C) so it’s fully hot by the time the shrimp go in. A properly preheated oven helps the shrimp roast quickly instead of steaming. Line a large baking sheet with parchment paper or foil to prevent sticking and make cleanup easy.

Place the peeled and deveined shrimp in a large mixing bowl. Drizzle them with the measured oil, then add the minced garlic, seasoning, and black pepper. Gently toss everything together using clean hands or a spatula until the shrimp are evenly coated. Take your time here so every shrimp gets flavor without being crushed.

Sprinkle the Parmesan cheese over the seasoned shrimp. Toss very lightly just until the cheese clings to the shrimp. Avoid overmixing, as you want the cheese to stay on the shrimp rather than fall to the bottom of the bowl.

Transfer the shrimp to the prepared baking sheet and arrange them in a single, even layer. Make sure the shrimp are not touching or overlapping—this spacing allows heat to circulate, helping them roast and lightly brown instead of releasing excess moisture.

Place the baking sheet in the preheated oven and bake for 8–10 minutes, flipping the shrimp once halfway through. The shrimp are done when they turn opaque, curl slightly, and develop light golden spots. Be careful not to overcook, as shrimp can become rubbery very quickly.

Remove the shrimp from the oven and immediately garnish with fresh herbs or a squeeze of lemon if desired. Serve hot while the shrimp are juicy, aromatic, and at their best texture.