Complex sentence: The "cuaresmeño" closely resembles the jalapeño; its seeds have the heat of a jalapeño, but the flesh has a mild flavor close to a green bell pepper.
Split into simpler sentences: The "cuaresmeño" closely resembles the jalapeño. The seeds of a "cuaresmeño" have the heat of a jalapeño, but the flesh has a mild flavor close to a green bell pepper.