Rinse 1 cup quinoa under cold water until the water runs clear—you're removing the natural bitter coating. This 60-second step tastes the difference between pleasant and exceptional, because bitter compounds actually linger on your tongue if you skip it.

Add rinsed quinoa to a pot with 2 cups water and bring to a boil over medium-high heat. Once you see the rolling boil, reduce heat to low, cover with a lid, and cook exactly 15 minutes without peeking.

After 15 minutes, remove from heat and let stand covered for 5 minutes—the steam finishes the cooking process. I learned this the hard way by stirring too early; you end up with mushy grains instead of fluffy ones.

Fluff the cooked quinoa with a fork and spread it on a large cutting board to cool for 10 minutes. Hot quinoa absorbs flavors differently than cooled quinoa, so this patience step prevents over-salting your summer quinoa salad crowd favorite.

While the quinoa cools, whisk together 3 tbsp olive oil and 2 tbsp fresh lemon juice in a small bowl. Taste and adjust lemon—you want noticeable brightness because the vegetables will dilute the dressing.

In a large serving bowl, combine the cooled quinoa with halved cherry tomatoes, diced cucumber, finely chopped red onion, corn kernels, drained black beans, and sliced grilled chicken. Fold everything together gently so tomatoes don't crush.

Pour the lemon dressing over the mixture and toss well until every component gleams with oil. This is the moment to taste and decide if you need more salt or additional lemon juice.

Fold in the fresh mint, parsley, and cilantro at the very last moment, right before serving or packing for transport. Fresh herbs lose their aromatic punch within hours, so this final addition is what makes people ask Sandra for the recipe.