Cut Hamburger buns into 1 inch cubes. Scatter on a baking sheet. Drizzle olive oil on bread cubes. Toss bread cubes so they are evenly coated. Sprinkle Salt, black pepper, and garlic powder. Sprinkle oregano thyme and basil. If you don't have all three, you can omit to taste. This can cater to what kind of meal you have ie. italian. If you want you can sprinkle parmesan cheese too.
Heat bread cubes in oven for 8-10 minutes until golden brown and crispy.
Store in an airtight container. Good for two weeks.