This design is from episode 5 of season 7 called “Lisa the Vegetarian”. The title here basically sums up the episode, Lisa becomes a vegetarian which stressed her and Homer’s relationship. At one point she visits Apu where he reveals he’s a vegetarian too and shows her this shirt. In case you’re wondering why I don’t have the slogan on it, Disney copyright struck my design due to the slogan being Bart’s famous catch phrase so I simply removed it.

Here’s the link to the product as a sticker, but you can view the design on multiple items if you’re interested.