Heat 1 tsp (5 ml) oil in a large saucepan over medium-high. Add chops and sear, 3 minutes per side (adjust heat as necessary). Remove to a plate.
Add remaining oil to pan; toss in onion and zucchini. Stir-fry for 2 minutes, then pour in orange juice. Mix in tomatoes, corn, beans and dry seasonings. Bring to a boil, then return chops to pan. Cover and simmer until pork is cooked through (turn once), about 5 minutes.
Transfer vegetable mixture and pork chops to plates; sprinkle with cilantro. Serve with mashed potatoes, if desired.
Per serving: 402 calories, 32 g protein, 15 g fat (4 g saturated fat), 34 g carbohydrates, 6 g fibre, 84 mg cholesterol, 80 mg sodium.