1. Before you begin, make sure the frozen shrimp is completely thawed. If you cook them straight from the freezer, they will steam rather than roast.
2. Preheat the oven to 400 degrees Fahrenheit.
3. Drain and dry the thawed shrimp on paper towels before placing them in the roasting pan.
4. Drizzle the shrimp with olive oil and lime juice. Toss the shrimp with a spatula or a cooking spoon to coat them. Spread them out into a single, equal layer.
5. You should season the shrimp with salt and pepper.
6. Bake the shrimp for 8 to 10 minutes, or until firm and pink.
7. The warm shrimp can be served warm or chilled shrimp can be served cold.

If you wish to serve the roasted shrimp as an entree, toss in some quick-cook vegetables like asparagus or cherry tomatoes, along with a pinch of garlic and herbs. You can watch this video recipe for how to cook frozen shrimp in the oven.