Combine 1 can lentils, cilantro, parsley, garlic, cumin, salt, and black pepper in a food processor and puree. Transfer mixture to a bowl and add remaining can of lentils, panko, and egg. Mix well and shape into 2-inch patties
Preheat an indoor electric grill for medium heat and lightly oil the grill with cooking spray. Cook patties until well browned, turning once, about 5 minutes total.
