01 - Combine quinoa, water, and salt in a medium saucepan. Bring to a boil, then cover and reduce heat to low. Simmer for 12-15 minutes until all liquid is absorbed. Remove from heat, fluff with a fork, and allow to cool to room temperature.
02 - While the quinoa cools, segment the orange and grapefruit. Thinly slice the radishes and scallions, dice the cucumber, and chop all fresh herbs.
03 - In a small bowl, whisk together the olive oil, lemon juice, honey or maple syrup, Dijon mustard, salt, and pepper until thoroughly emulsified.
04 - In a large mixing bowl, combine the cooled quinoa with the citrus segments, lemon zest, sliced radishes, diced cucumber, scallions, parsley, mint, and dill.
05 - Pour the dressing over the salad and toss gently until everything is evenly coated. Taste and adjust seasoning as needed.
06 - Serve immediately at room temperature, or refrigerate for 30 minutes to allow the flavors to develop further.