Preheat your oven to 400°F (200°C).
Lay out two large sheets of aluminum foil for wrapping the lamb chops and vegetables separately.
In a bowl, combine carrots, potatoes, and bell peppers. Drizzle with olive oil and mix in minced garlic, rosemary, salt, and black pepper.
Place one lamb chop in the center of each foil sheet, dividing the vegetable mixture evenly over the lamb.
Wrap the foil securely around the lamb and vegetables, creating a sealed packet.
Place foil packets on a baking sheet and bake in the preheated oven for 45 minutes.
Carefully open the foil packets to avoid steam, and serve the lamb chops and vegetables hot.