Preheat grill to medium-high. Place beef, 1/4 cup cilantro, onion, scallions, garlic, chili powder, cumin, oregano, pepper and salt in a large bowl. Gently combine, without overmixing, until evenly incorporated. Form into 4 equal patties, about 1/2 inch thick and oval-shaped to match the rolls. Combine the remaining 1/2 cup cilantro, mayonnaise, lime juice and chipotle in a small bowl. Peel the roasted peppers, halve lengthwise and remove the seeds. Oil the grill rack. Grill the burgers until an instant-read thermometer inserted in the center registers 165°F, about 6 minutes per side. Top with cheese and cook until it is melted, about 1 minute more. Assemble the burgers on toasted rolls with the chipotle mayonnaise, half a roasted pepper, cabbage, tomato and onion.