01 - Rinse quinoa thoroughly under cold water. Combine quinoa, water, and salt in a medium saucepan. Bring to a boil over high heat, then reduce to low, cover, and simmer for 15 minutes until all liquid is absorbed. Remove from heat and let stand covered for 5 minutes. Fluff with a fork and allow to cool completely.
02 - Preheat a grill or grill pan to medium-high heat. Lightly brush peach halves with olive oil. Place cut-side down on the grill and cook for 2–3 minutes until distinct grill marks form and the flesh softens slightly. Remove from heat, let cool, then slice into wedges.
03 - In a large mixing bowl, combine the cooled quinoa, grilled peach wedges, diced jalapeño, red onion, cherry tomatoes, chopped cilantro, mint (if using), and diced avocado.
04 - In a small bowl, whisk together the olive oil, fresh lime juice, honey or maple syrup, ground cumin, salt, and black pepper until emulsified and smooth.
05 - Pour the dressing over the salad mixture and toss gently until all ingredients are evenly coated.
06 - Transfer the salad to a serving platter. Sprinkle with toasted pumpkin seeds and scatter extra cilantro leaves over the top. Serve immediately, or refrigerate for 30 minutes to allow the flavors to develop.