Place in a medium saucepan with 1 3/4 cup water and 1/2 tsp salt. Bring it to a boil, lower the heat, cover and let cook for about 15 minutes. Once cooked, gently fluff up the groats with a fork. Let them cool completely.
In a large bowl, combine the chopped vegetables and herbs. Mix in the cooked buckwheat.
Now stir in the olive oil, lemon juice, salt, and pepper. Taste and adjust for seasoning.
Let the salad sit for about 30-40 minutes in the refrigerator before serving. Enjoy!