Heat olive oil in a pan. Add a pat of butter. When it melts, add brussels sprouts, garlic, salt, and pepper. Heat for a few minutes, then add a little water. Sautee for a while, then add the juice of half a lemon. Keep cooking until the liquid is mostly gone. Add some white wine. Heat until the wine is mostly gone. Eat.
(The brussels sprouts should be halved first, of course.)