01 - Rinse quinoa thoroughly under cold water. In a medium saucepan, combine quinoa, water, and 1/2 teaspoon salt. Bring to a boil, then reduce heat to low, cover, and simmer for 15 minutes until water is absorbed. Remove from heat and let stand, covered, for 5 minutes. Fluff with a fork and cool to room temperature.
02 - Preheat grill or grill pan over medium-high heat. Lightly brush peach halves with a small amount of olive oil. Grill peaches cut side down for 2-3 minutes until grill marks appear and fruit is slightly softened. Remove, let cool, then slice into wedges.
03 - In a large mixing bowl, combine cooled quinoa, grilled peach slices, cherry tomatoes, cucumber, red onion, cilantro, and mint if using.
04 - In a small bowl, whisk together olive oil, lime juice, honey or maple syrup, Dijon mustard, minced garlic, salt, and pepper until fully emulsified and smooth.
05 - Pour dressing over salad mixture and toss gently to coat evenly. Top with crumbled feta and toasted almonds or pumpkin seeds if desired. Serve immediately or refrigerate for 30 minutes to allow flavors to meld.