Preheat the oven to 400F. Brush a 13 x 9 baking pan with olive oil and set aside.
Put the potatoes in a large mixing bowl, add a 1/4 cup of olive oil, and toss well. Add the garlic, onion, cheese, oregano and rosemary, and mix well to combine. Add the salt and black pepper, and mix well.
Spread the potatoes in a single layer in the pan. Sprinkle on the bread crumbs and drizzle some olive oil over the top. Cover with foil and bake for 30 minutes. Uncover and bake uncovered for an additional 45 minutes, or until brown and crisp on the edges.
Remove the pan from the oven. The potatoes will appear to be stuck at the bottom. While the pan is still very hot, take a flat spatula (pancake turner) and wedge it under the crust that has formed under the potatoes. Scrape the potatoes away from you, separating the crust from the pan.
Transfer to a serving platter and serve hot.