Cheese, Zucchini and Cauliflower Gnocchi

Ingredients

• • 2 tbsp butter
  • 2 tbsp unbleached all-purpose flour
  • 2 ¼ cups (560 ml) milk
  • 1 garlic clove, chopped
  • 2 zucchini, diced
  • 500 g store-bought gnocchi
  • 1/2 cauliflower (about 390 g), cut into small florets (see note)
  • ½ cup (35 g) Pecorino cheese, finely grated
  • 1 pinch ground nutmeg
  • Chives or basil, finely chopped, to taste