First make your crostinis. Heat your oven to 350 degrees. Slice your loaf of bread up, mix the garlic seasoning with the oil, and brush a little on both sides of the bread. Place on a baking tray and bake in the oven till they brown a little. About 5 - 8 mins. Flip them over and cook till they are browned on the other side as well. About 3 - 5 mins. Set aside.
Put all the pesto ingredients into a food processor and whiz it up. Season to taste with salt.
Spread about a tablespoon of pesto on each crostini and sprinkle each with a little parmesan cheese.
Drizzle all the crostinis with a little olive oil and serve!