Green-Curry Pork and Eggplant

In a large skillet or wok, heat oil over medium-high. Add curry paste and cook, stirring, until fragrant, 30 seconds. Add pork and cook, breaking up meat with a wooden spoon, until no longer pink, 5 minutes. Add eggplant and cook until beginning to soften, 4 minutes. Add broth and coconut milk and bring to a boil. Reduce heat and cook at a rapid simmer, stirring frequently, until eggplant is tender, 4 minutes. Serve over rice, topped with scallion, cilantro, and lime wedges, if desired.