Crustless three-cheese mushroom and spinach quiche | easyFood

Ingredients

• 250 g mushrooms, thinly sliced
• 1 garlic clove, crushed
• ½ tbsp olive oil, plus extra to grease
• 280 g frozen spinach, thawed
• 4 large eggs
• 250 ml milk
• 60 g feta, crumbled
• 40 g Parmesan, grated
• 60 g cheddar cheese, grated
• Salt and black pepper