Spinach and Feta Frittata Greek Sunshine on a Plate

Ingredients

• 6 large eggs
• 1/4 cup whole milk (60ml)
• 4 oz feta cheese (115g), crumbled
• 1 tbsp olive oil
• 1 shallot, finely chopped
• 5 oz fresh spinach (140g), roughly chopped (or frozen, thawed and squeezed dry)
• 1/4 teaspoon salt
• 1/4 teaspoon black pepper
• 1/4 teaspoon dried oregano
• 1 tablespoon fresh lemon juice
• Pinch of red pepper flakes (optional)