In a small bowl, whisk together 0.5 tablespoons of olive oil, minced garlic, chopped rosemary, thyme, sea salt, black pepper, and lemon juice.
Rub the herb mixture evenly over both sides of the lamb chops and let them marinate at room temperature for 15 to 20 minutes.
Trim the woody ends off the asparagus and toss the spears with the remaining 0.5 tablespoons of olive oil and a pinch of salt.
Preheat a grill or cast-iron grill pan over medium-high heat until very hot.
Place the lamb chops on the grill and cook for 4 to 5 minutes per side for medium-rare, ensuring a deep golden crust forms.
Add the asparagus to the grill during the last 5 minutes of cooking, turning occasionally until tender and charred in spots.
Remove the lamb and asparagus from the heat; let the meat rest for 5 minutes to allow the juices to redistribute.
Sprinkle the fresh lemon zest over the lamb and asparagus before serving warm.