Home-style lamb casserole

Ingredients (8 servings): 2 tablespoons olive oil 1.5kg diced lamb 2 medium brown onions, chopped 2 medium carrots, peeled, chopped 2 celery stalks, chopped 2 garlic cloves, crushed 2 cups beef stock 2 x 400g cans diced tomatoes 500g orange sweet potato, peeled, cut into 2cm pieces 250g cauliflower florets   Method: Heat half the…