Spinach and Feta Quiche with Cauliflower Crust

Ingredients

• 5 eggs
• 1/2 teaspoon ground black pepper
• nonstick spray
• 1/2 cup feta cheese, crumbled, plus more for garnish
• 1/2 cup Parmesan cheese
• 2 scallions, thinly sliced
• 1 small head of cauliflower, cut into florets
• Parmesan cheese, grated
• 1 egg, slightly beaten
• 1/2 teaspoon garlic powder
• 1/2 teaspoon salt
• 1 teaspoon salt
• 2 1/2 oz. baby spinach
• 1/3 cup milk
• 1 teaspoon olive oil