01 - Set grill or grill pan to high heat.
02 - In a shallow dish, whisk olive oil, kosher salt, black pepper, ground cumin, smoked paprika, minced garlic, and lime juice. Add the flank steak and coat thoroughly. Allow to marinate at room temperature for 15 to 20 minutes.
03 - While steak marinates, grill the poblano peppers directly over high heat, turning until skins are charred and blistered, about 5 to 7 minutes. Transfer to a bowl, cover, and steam for 5 minutes. Remove and discard skins, stems, and seeds. Dice the remaining flesh.
04 - In a mixing bowl, combine diced poblano peppers, cherry tomatoes, finely diced red onion, minced jalapeño, chopped cilantro, lime juice, salt, and black pepper. Toss gently and let sit.
05 - Place flank steak on the grill and cook for 5 to 6 minutes per side for medium-rare, or until preferred doneness.
06 - Transfer steak to a cutting board and let rest for 5 minutes. Slice thinly across the grain for tenderness.
07 - Arrange steak slices on a platter and generously spoon poblano pico on top before serving.