1 In A Large Skillet, Heat The Olive Oil And Butter On Medium Heat. Add The Onion And Parsley And Cook Until Soft, But Not Browned. 2 Add The Zucchini Sticks, Crumbled Bouillon Cube, Thyme And A Pinch Of Salt And Pepper. Gently Stir To Coat The Zucchini. Cover And Cook Until Tender, From 10 To 20 Minutes, Depending On How Tender The The Raw Zucchini Is To Begin With, And How Small You Have Sliced The Pieces. Check And Stir Every Few Minutes. Be Careful Not To Overcook.