Preheat oven to 350F. Generously butter a 8 x 4 1/2 x 2 3/4 inch loaf pan.
Whisk the flour, baking powder, salt and pepper together in a large bowl.
Put the eggs in a medium bowl and whisk for about 1 minute, until foamy and blended. Whisk in milk and olive oil.
Pour the wet ingredients over the dry using a wooden spoon or rubber spatula. Mix until all the dry mixture is moistened. Stir in the grated and cubed cheese and the scallions. (The dough will be thick). Place dough in the prepared pan and even out.