In a small bowl, whisk together 1 tsp olive oil, minced garlic, chopped rosemary, chopped thyme, sea salt, and black pepper.
Rub the herb mixture evenly over both sides of the lamb loin chops and let them marinate at room temperature for 15 minutes.
Preheat a grill or heavy grill pan over medium-high heat until it is very hot.
Toss the asparagus spears with the remaining 1 tsp olive oil and a small pinch of salt.
Place the lamb chops on the grill and cook for 4-5 minutes per side for medium-rare, or until your desired level of doneness is reached.
Add the asparagus to the grill alongside the lamb during the last 4 minutes of cooking, turning occasionally until tender and slightly charred.
Remove the lamb from the heat and let it rest on a plate for 5 minutes to allow the juices to redistribute.
Drizzle the fresh lemon juice over the grilled asparagus and lamb chops just before serving.