Deliciously Stuffed Zucchinis

Ingredients

• 5 medium-sized zucchini
• 1 tablespoon olive oil
• 3 spring onions, finely chopped
• 3 cloves garlic, pressed or grated
• 1 teaspoon dried oregano
• 1 teaspoon salt (or more to taste)
• ⅛ teaspoon black pepper
• 1 cup ricotta cheese
• ¾ cup grated parmesan cheese
• ½ packed cup sun-dried tomatoes, chopped
• ½ cup breadcrumbs
• 1 teaspoon grated lemon zest