If scallops are frozen, thaw in cold water. Remove the side muscle from the scallops if attached. Thoroughly pat dry with paper towels.
Heat olive oil in a large pan or skillet over medium-high heat until hot and sizzling. Add the scallops in a single layer without over crowding the pan (work in batches if needed).
Season with salt and pepper to taste and fry for 2-3 minutes on one side (until a golden crust forms underneath), then flip and fry again for 2 minutes until crisp, lightly browned and cooked through (opaque). Remove from skillet and transfer to a plate.
