Preheat oven to 200*C. Chop spuds in half, boil in a pot until softened but still holding together well. Oil spuds, salt spuds and bake until browned.
Meanwhile, season steaks with garlic salt and paprika. Fry in hot pan (both sides) until around medium (still pink inside) and set aside to rest. Also - in a glass jar add Mayo, butter milk, garlic and mustard. Shake well.
Throw salad leaves, semi sundries tomatoes and onions in a large salad bowl. Slice steaks and when spuds have cooled to warm throw both into salad. Top with dressing and serve with some cracked black pepper.