Zucchinni Scarpaccia

Name: Zucchinni Scarpaccia
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: Italian
Ingredients: 1 tablespoon olive oil (for sauteing ); 3 large zucchini (750g to 1 kg (no need to be exact—use what you have!)); 1 medium onion ((white or red)); 1 cup all-purpose flour; 1/3 cup cornmeal; 1 teaspoon garlic powder; 1 tbsp fresh rosemary; 1 cup water; 3 tablespoons olive oil (for the batter); 2 tablespoons grated Parmesan; salt and pepper to taste; Optional garnish: fresh basil or rosemary + chili pepper flakes