Poached Eggs in Portobello Mushroom Caps

Ingredients

• 4 large portobello mushrooms
• 2 tbsp extra virgin olive oil
• 1 tbsp balsamic vinegar
• 1 tsp fresh thyme (chopped)
• 1/2 tsp salt
• 1/4 cup cheddar (grated)
• 300 g spinach (chopped)
• 1 tbsp fresh dill (chopped)
• 1 tbsp white vinegar
• 1 tbsp extra virgin olive oil
• 1/4 tsp ground black pepper
• 4 eggs
• 1 garlic clove (finely chopped)
• 1 medium onion (finely chopped)