Heat a little oil in a large frying pan. Slice chorizo into rounds. Cook chorizo on a medium high heat until well browned on both sides. About 10 minutes.
Remove chorizo from the pan and place in a clean bowl, leaving behind as much lovely chorzio oil as possible.
Chop the broccolini / broccoli into bite sized pieces. Add it to the pan with 4 tablespoons of water. Cover with a tray or lid or foil and cook stirring every 5 minutes or so until the veg is bright green and tender with a little bit of crunch left. If it starts to burn add a little more water.
Return the chorizo to the pan and allow to warm. Squeeze over some lemon. Taste and season with salt and pepper and more lemon if needed.