pistachios

Prep time: 10 minutes Cook time: 30 minutes Servings: 4 1          large head cauliflower, leaves trimmed off 3          tablespoons extra-virgin olive oil, divided 2          teaspoons finely chopped rosemary 1/2       teaspoon coarse salt 1/2       teaspoon freshly ground black pepper, divided 1          cup halved California grapes 1/4       cup chopped Castelvetrano olives…