In a small bowl, whisk together 0.5 tbsp of olive oil, minced garlic, rosemary, thyme, 0.25 tsp salt, and 0.125 tsp pepper.
Rub the marinade over the lamb chops and let them sit at room temperature for 20 minutes to absorb the flavors.
Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Chop the zucchini, bell peppers, and red onion into bite-sized pieces and toss them with the remaining 0.5 tbsp of olive oil, 0.25 tsp salt, and 0.125 tsp pepper.
Spread the vegetables in a single layer on the baking sheet and roast for 20 minutes until they are tender and slightly caramelized.
While the vegetables roast, preheat a grill or cast-iron skillet over medium-high heat.
Grill the lamb chops for 4-5 minutes per side for medium-rare, ensuring a golden-brown crust forms on the outside.
Remove the lamb from the heat and let it rest for 5 minutes before serving alongside the roasted vegetables.