New Portobello Mushroom Buttery Jack from Jack in the Box

Posted July 23rd, 2015 | 3:28pm by Ryan

The Buttery Jack lineup at Jack in the Box has a new member… the Portobello Mushroom Buttery Jack.

A juicy 1/4lb* signature beef patty topped with melted garlic herb butter, Portobello mushrooms, buttery grilled onions, and Swiss cheese. Finished with creamy peppercorn mayo and placed on a gourmet signature bun

Nutrition info: 807 calories, 51 grams of fat, 23 grams of saturated fat, 128 milligrams of cholesterol, 1081 milligrams of sodium, 51 grams of carbs, 4 grams of fiber, 12 grams of sugar, 38 grams of protein