01 - Preheat oven to 350°F. Lightly grease a medium baking dish with olive oil.
02 - Heat 1 tablespoon olive oil in a large skillet over medium heat. Add chopped onion and cook 3–4 minutes until softened. Add minced garlic and cook 1 minute until fragrant.
03 - Add spinach to skillet and cook, stirring constantly, until wilted, 2–3 minutes. Remove from heat and set aside.
04 - In a large bowl, whisk together eggs, heavy cream, ricotta, Parmesan, oregano, black pepper, salt, and nutmeg (if using) until smooth and well combined.
05 - Gently fold the cooked spinach mixture and half the cherry tomatoes into the cream mixture until evenly distributed.
06 - Pour mixture into prepared baking dish. Scatter remaining cherry tomatoes and pine nuts evenly over the surface.
07 - Drizzle with remaining tablespoon olive oil and sprinkle breadcrumbs across the top.
08 - Bake for 30–35 minutes until golden brown and set in the center. A knife inserted should come out clean.
09 - Let cool for 5 minutes before serving to allow the bake to set.