Preheat oven to 400°F. Toss garbanzo beans with next 5 ingredients in medium bowl. Transfer mixture to rimmed baking sheet. Bake until garbanzos are golden and crisp, stirring occasionally with metal spatula, about 20 minutes. (Can be made 4 hours ahead. Keep at room temperature.)
Stir pistachios and thyme into garbanzo mixture. Bake until beans and pistachios are crunchy, about 12 minutes. Transfer mixture to bowl and serve warm.
