Grate 2 small zucchini into a colander in the sink; toss with 2 teaspoons salt and let sit 10 minutes. Squeeze out the liquid. Mix with 4 minced scallions, 1/4 cup each chopped parsley and dill, 1 beaten egg, 3/4 cup grated parmesan and 1/4 cup flour. Pan-fry spoonfuls of the mixture in olive oil, flattening with a spatula, 3 to 4 minutes per side. Drain on paper towels and season with salt.