Preheat oven to 400°F (205°C). Line a baking sheet with parchment.
Toss shrimp with olive oil, salt, and pepper. Sear 1–2 minutes per side in a hot skillet until just pink; remove.
Mix sweet-chili sauce, mayo, and lime juice in a small bowl.
Cut puff pastry into two rectangles. Fold up edges to form shallow boats and brush with egg wash.
Spread a thin layer of sauce inside each boat, sprinkle cheese, arrange shrimp on top, and spoon a little extra sauce.
Bake 12–15 minutes until puff pastry is golden and cheese is bubbly. Garnish and serve warm.