Vegetarian Shepherd's Pie Recipe with step by step instructions and photos

Ingredients

• 2 tablespoons olive oil
• 3 shallots
• 1 lb mushrooms
• 6 medium carrots
• 1 sprig rosemary
• 1 sprig thyme
• 2 bay leaves
• 2 tablespoons tomato purée (tomato paste)
• 2 tablespoons flour
• ½ cup red wine
• 4-5 fl oz vegetable stock (from a stock cube)
• 2 lb frozen peas
• 4 oz potatoes
• 2-3 oz full fat Greek yogurt
• 2-3 oz butter
• salt to taste