How to Make It
Heat a dry skillet over medium heat. Add cumin and coriander seeds; cook 3 to 4 minutes or until toasted and fragrant. Crush seeds with a mortar and pestle or a small heavy skillet. Add rind, salt, paprika, red pepper, and garlic; mash to form a paste. Place spice mixture, cilantro, parsley, and juice in the bowl of a food processor; pulse until finely chopped, scraping sides of bowl as needed. With processor on, slowly pour olive oil through food chute, processing just until blended.
Heat a large cast-iron skillet over medium-high heat. Coat pan with cooking spray. Arrange one-fourth of eggplant slices in pan; cook 3 to 5 minutes on each side or until browned and tender (slightly charred is even better). Place cooked eggplant on a platter. Repeat procedure 3 times with cooking spray and remaining eggplant. Drizzle cilantro mixture over eggplant.