Preheat your oven to 400°F. Line a large baking sheet with parchment paper, and set aside.
Rinse and drain your cooked chickpeas well. Pat dry with paper towels to remove moisture. Transfer your chickpeas to your baking sheet.
Top the chickpeas with your olive oil, salt, garlic powder, and Italian seasoning. Toss the chickpeas to coat in the seasoning.
Spread the chickpeas into an even layer on your baking sheet, making sure the chickpeas aren't overlapping too much. Bake in your preheated 400°F oven for 25 to 30 minutes, or until slightly shrunken and golden brown.