1/4 cup chopped fresh parsley and/or dill
1 tablespoon chopped fresh chives
2 teaspoons garlic powder
2 teaspoons onion powder
Kosher salt and freshly ground black pepper
Nonstick cooking spray
1/2 cup all-purpose flour
2 large eggs, beaten
2 1/2 cups plain panko breadcrumbs (See Cook's Note)
1 pound zucchini (2 to 3 small to medium zucchini) cut into 1/4-inch-thick rounds
1/2 cup buttermilk
2 tablespoons mayonnaise
1 tablespoon white vinegar
Some panko breadcrumbs are coarser then others. Rub the breadcrumbs with your fingers to make them finer, which will help them coat the zucchini pieces better.