Frozen pineapple and shrimp are the keys to making this a quick and easy dish. If I'd had to cut up a whole pineapple and peel my own shrimp ... well, no.
So, the first thing you do is get some rice started. While that's going on you'll need to thaw the pineapple and shrimp, zest and juice a lime, seed and chop a jalapeño, chop some cilantro and a bit of green onion.
Put it all together on a plate and top with the green onion. Eat!