2 tablespoons butter
1 small onion, finely chopped
1 (8 ounce) package cream cheese, softened
1 cup plain yogurt
2 (6 ounce) cans lump crabmeat, drained
6 ounces smoked salmon, chopped
1/4 teaspoon garlic salt
1 pinch ground black pepper
1 tablespoon chopped Italian flat leaf parsley