Greek-Style Spinach, Feta & Polenta Pie

Bahan-bahan (4 porsi)

• 3 tablespoons extra-virgin olive oil, (divided)
• 6 oz baby spinach ((about 6 packed cups))
• 5 large eggs
• ⅔ cup whole-milk plain Greek yogurt ((low-fat works too))
• ¼ cup instant polenta
• 1 clove garlic, (minced)
• ½ teaspoon salt
• ¼ teaspoon freshly ground black pepper
• ½ cup crumbled feta cheese
• ½ cup finely grated pecorino Romano cheese
• 2 tablespoons chopped fresh dill