Add onions, garlic and chorizo sausage and over a medium heat stir-fry until the onions soften. Stir in the smoked paprika and tomato paste. Return the chicken to the pan. Add Wattie’s Crushed and Sieved Tomatoes, stock and thyme. Bring to the boil. Add Wattie’s frozen Casserole Mix but do not stir vegetables into the sauce. Cover.