Carrot, zucchini and parsnip frittata fingers

Ingredients (± 12 fingers): Melted butter, to grease 2 teaspoons light olive oil 80g (½ cup, firmly packed) grated green zucchini 60g (½ cup, firmly packed) Grated carrot 50g (½ cup, firmly packed) grated parsnip 2 green shallots, ends trimmed, finely chopped 3 eggs, lightly whisked 40g (1/3 cup) coarsely grated tasty cheese 2 tablespoons…