Cubes of sweet potatoes and plump pink shrimp - both coated in spicy ginger-spiked coconut milk - share a sheet pan in this easy, deeply flavored one-pan meal. The sweet potato is added to the pan first, and roasted until just tender. Then, shrimp is scattered on top, and the whole pan is run under the broiler. The brief,intense heat allows the shrimp to cook through but stay succulent and the coconut milk-bathed sweet potatoes to caramelize at their edges. Scallions, cilantro and lime juice add a jolt of brightness right at the end.