in a food processor, pulse broccoli florets until they become rice-like (or buy a broccoli rice pouch - I get mine from Sainsbury's).
using a large mixing bowl, combine broccoli rice, grated cheese, eggs, salt and pepper (plus chilli powder or flakes if you fancy spicy bites) - I find a fork works best.
pre-heat oven to 200C fan (220C static).
generously butter each hole of a 12-muffin oven tray and divide the mixture between the holes.
use the back of a teaspoon to flatten the mixture, but avoid pressing down excessively.
bake for 25-30 minutes until golden brown and crispy on top.
let the bites cool down, then remove them (a small, flexible spatula will help if a little stuck to the bottom or sides) and serve.
Notes
Macros given are for 1 bite. As a reasonable portion I would suggest 3 bites per person.
Metric scales are inexpensive but invaluable, and they take up very little space. THIS is the one I use. For U.S. option, click HERE.