Let lamb stand at room temperature 15 minutes. Pat dry with paper towels; season both sides with salt and pepper.
Mix panko, rosemary, thyme, garlic, and 2 tablespoons oil in a small bowl until evenly combined.
Heat remaining 1 tablespoon oil in a large oven-safe skillet over medium-high. Sear chops 2 minutes per side until browned.
Brush tops with Dijon; firmly press herb mixture onto mustard.
Transfer skillet to preheated 400°F oven; roast about 5 to 7 minutes, until lamb reaches 145°F (63°C) in center.
Remove from oven; tent loosely with foil and rest at least 3 minutes before serving.