Combine onion, margarine, bacon and parsley; mix well.
Separate dough into eight rectangles; firmly press perforations to seal.
Spread margarine mixture over dough.
Roll up each rectangle, starting at short end; cut into four slices.
Place on ungreased cookie sheet, cut-side down; flatten slightly.
Bake at 375°F; 15€”20 minutes or until golden brown.