Shepherd's Pie with Cauliflower Mash Recipe | Food Network UK

Ingredients

• 500g potatoes, peeled and quartered
• 1 medium head cauliflower (about 2 pounds), cored and cut into 1-inch florets
• 1 bunch spring onions, finely chopped
• 1 1/4 cups chicken broth
• Salt and freshly ground black pepper
• 1 pound lean ground beef
• 1 teaspoon extra-virgin olive oil
• 3 carrots, halved lengthwise and cut into thin half-moons
• 3 cloves garlic, finely chopped
• 2 stalks celery, finely chopped
• 2 medium onions, finely chopped
• 2 tablespoons plain flour
• 2 tablespoons tomato paste
• 2 tablespoons Worcestershire sauce
• One 10-ounce package frozen peas, thawed