Tomato Basil Quinoa Salad

~gluten-free, grain-free (technically quinoa is a seed), dairy-free, nut-free, cane sugar-free

Quinoa:
2 cups quinoa
3 ½ cups water
pinch sea salt

Salad:
2 large heirloom tomatoes, diced (about 3 to 4 cups)
1 cup finely diced walla walla onion (or other variety of sweet onion)
1 cup chopped basil leaves
6 tablespoons organic red wine vinegar
6 tablespoons extra virgin olive oil
1 teaspoon sea salt
freshly ground black pepper, to taste