In a small bowl, whisk together the olive oil, lemon juice, lemon zest, garlic, honey, red pepper flakes, salt and pepper until well blended. Refrigerate until ready to serve.
Cook wheat berries according to package directions, cool to room temperature. In a large bowl, toss together with a tablespoon or two of the dressing, carrots, radishes, parsley and basil until well mixed. Garnish with avocado, feta and sunflower seeds and serve with additional dressing on the side.