Step 1

Rinse quinoa for about 2 minutes, using your hands to make sure all the saponins are removed.

Step 2

Fill a medium pot with water, add quinoa and salt to taste and bring to a boil.

Step 3

When the water boils, reduce heat to low and cover; simmer covered 15 minutes.

Step 4

Remove from heat and keep covered an additional 5 minutes without lifting the lid; then fluff with a fork and set aside in a large mixing bowl to cool.

Step 5

Meanwhile, season chicken on both sides with salt and pepper, garlic and rosemary.

Step 6

Drizzle both sides with the lemon juice and 1 teaspoon olive oil and pat into the meat with your fingertips.

Step 7

Refrigerate 20 minutes while you prepare the grill.

Step 8

Preheat the grill on high heat, clean the grates and oil them to prevent sticking (or use a grill pan indoors sprayed with oil).

Step 9

Arrange the chicken on the grill and cook until cooked and firm, 1 to 2 minutes per side.

Step 10

Transfer the chicken to a cutting board, then slice into 1-inch pieces.

Step 11

While the quinoa cools, dice all the vegetables.

Step 12

To the large work bowl with the cooled quinoa, add the red onion, olives, cucumber and tomatoes to the cooled quinoa, and squeeze the lemon over it.

Step 13

Drizzle the remaining tablespoon olive oil over the quinoa, then add grilled chicken, feta, salt and pepper to taste and toss well.

Step 14

Taste for salt and adjust as needed, add more lemon juice if needed.