Preheat oven to 450°F. In a medium bowl stir together eggs, cream cheese, and salt. The mixture will be slightly lumpy. Stir in cheddar cheese, oregano, basil, and parsley.
Slice zucchini into rounds about 1/4 inch thick. I used a mandoline.
Pour egg mixture into a 8-10 inch round tart or pie pan. I used one similiar to this.
Layer zucchini in a circular pattern over egg mixture. Sprinkle evenly with grated Parmesan cheese.
Bake for about 30-35 minutes or until golden brown and baked through.