Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Place the peeled and deveined shrimp in a mixing bowl, then drizzle with olive oil. Toss gently to coat the shrimp evenly.
Add the minced garlic, salt, and black pepper to the bowl. Mix everything until the shrimp are well seasoned and fragrant with garlic.
Spread the shrimp in a single layer on the prepared baking sheet, making sure they aren’t crowded so they can crisp up properly.
Sprinkle the grated Parmesan evenly over the shrimp for a cheesy crust that will melt and brown during roasting.
Bake in the preheated oven for about 12-15 minutes, or until the shrimp turn pink, and the Parmesan is golden and crispy around the edges—listen for a gentle bubbling.
Remove the baking sheet from the oven and let the shrimp rest for a minute. The cheese should be bubbly and crispy, with a fragrant garlic aroma filling your kitchen.
Transfer the roasted shrimp to a serving plate, garnish with additional Parmesan if desired, and serve immediately for a crunchy, cheesy, garlicky treat.