Bring a large pot of water to a boil. Add potatoes and cook for 10 minutes or until tender; drain well.
Transfer back to pot and mash well, then stir in yogurt, milk, buttery spread and salt. Gently stir in remaining ingredients and cook for 2 to 3 minutes more to heat through.
Bring a large pot of water to a boil. Add potatoes and cook for 10 minutes or until tender; drain well.
Transfer back to pot and mash well, then stir in yogurt, milk, buttery spread and salt. Gently stir in remaining ingredients and cook for 2 to 3 minutes more to heat through.