Make finishing oil: Heat 2 to 3 tablespoons olive oil in a small sauce- or frying pan over medium-low heat with the remaining clove of garlic, rosemary, and a pinch or two of salt and pepper flakes, until sizzling; pull it off the heat as soon as the garlic is going to start taking on color. Drizzle this over bowls of pasta e ceci and eat it right away.