To make dukkah: Heat oven to 350 F. Spread cashews and hazelnuts on baking sheet and toast 6-8 minutes. Transfer to food processor and set aside. In skillet over medium heat, toast sesame seeds, cumin seeds and coriander seeds until fragrant, 1-2 minutes, then transfer to food processor. Add dried thyme and salt. Pulse mixture until coarsely ground. Makes about 1 cup that can be stored in an airtight container.
Divide yogurt into four 3/4-cup portions. In small bowl, combine grapes, cucumber, shallots, olive oil, vinegar, salt and pepper. Toss to combine. Top each bowl of yogurt with 1/2 cup grape mixture, 1 tablespoon dukkah and sprinkle of lemon zest.
Notes
Nutritional information per serving: 220 calories; 19 g protein; 18 g carbohydrate; 8 g fat (33% calories from fat); 1.5 g saturated fat (6% calories from saturated fat); 10 mg cholesterol; 140 mg sodium; 2 g fiber.