▁in ▁the ▁episode . ▁Paul ▁McC art ney ' s ▁condition ▁for ▁appearing ▁was ▁that ▁Lisa ▁would ▁remain ▁a ▁veget arian ▁for ▁the ▁rest ▁of ▁the ▁series . ▁The ▁episode ▁makes ▁several ▁references ▁to ▁McC art ney ' s ▁musical ▁career , ▁and ▁his ▁song ▁" Maybe ▁I ' m ▁Ama zed " ▁plays ▁during ▁the ▁closing ▁cred its . ▁ ▁In ▁its ▁original ▁broadcast , ▁" L isa ▁the ▁Veg et arian " ▁was ▁watched ▁by ▁ 1 4 . 6 ▁million ▁view ers ▁and ▁finished ▁ 4 7 th ▁in ▁the ▁ratings ▁for ▁the ▁week ▁of ▁October ▁ 9 – 1 5 , ▁ 1 9 9 5 , ▁with ▁a ▁ 9 . 0 ▁N iel sen ▁rating . ▁It ▁was ▁the ▁fourth ▁highest - r ated ▁show ▁on ▁the ▁Fox ▁network ▁that ▁week . ▁▁ ▁The ▁episode ▁received ▁acc laim ▁from ▁television ▁critics ▁and ▁it ▁has ▁won ▁two ▁awards , ▁an ▁Environment al ▁Media ▁Award ▁and ▁a ▁Gen esis ▁Award , ▁for ▁highlight ing ▁environmental ▁and ▁animal ▁issues , ▁respectively . ▁ ▁Plot ▁The ▁Sim pson ▁family ▁vis its ▁a ▁pet ting ▁zoo , ▁where ▁Lisa ▁is ▁en ra pt ured ▁by ▁a ▁c ute ▁l amb . ▁That ▁night , ▁Mar ge ▁serves ▁l amb ▁ch ops ▁for ▁dinner . ▁Tr ouble d ▁by ▁the ▁connection ▁between ▁the ▁d ish ▁and ▁its ▁living ▁counter part , ▁Lisa ▁announ ces ▁that ▁she ▁will ▁no ▁longer ▁eat ▁meat . ▁Bart ▁and ▁H omer ▁mock ▁her ▁rel ent lessly ▁for ▁her