Mushroom quiches | Australian Mushrooms

Ingredients

• 200 g button mushrooms
• 75 g frozen chopped spinach
• 2 tbsp butter or olive oil
• 1 tsp garlic powder
• Pinch salt
• ¼ tsp freshly ground black pepper
• 6 large eggs
• ¾ cup Greek-style yoghurt
• 100 g goat’s milk feta
• ¼ cup finely grated parmesan cheese