Spray nonstick 12-inch skillet with vegetable cooking spray; warm over medium heat until hot. Add pork chops and cook 4 minutes; turn pork and cook until lightly browned on the outside and still slightly pink on the inside, 3 to 4 minutes longer. Transfer to platter; cover loosely with foil to keep warm.
In same skillet, warm oil over medium heat. Add onion and cook until golden, stirring frequently, about 5 minutes. Add garlic and cook, stirring, 1 minute longer. Add beans, broth, lime juice, pepper and remaining 1/4 teaspoon salt; heat through.
To serve, spoon bean mixture over pork; sprinkle with cilantro. Serve with orange wedges, if desired.