New Portobello Mushroom Buttery Jack from Jack in the Box

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

Portobello Mushroom Buttery Jack

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

7 comments on “New Portobello Mushroom Buttery Jack from Jack in the Box

  1. JJJ says:

    I am all over this one.

  2. Jonathan Wayne says:

    Buttery Jacks are good and this one should be very much so.

  3. Roger says:

    This week tried the Buttery classic for the first time – it – was – great. Actually couldn’t put it down. Just used the top link to the last review and it has the JIB link to a $1 off coupon. Overall a pricey burger but a new guilty pleasure! I hope to try the portobello version on Weds.

  4. JJJ says:

    I tried this today. Best fast food mushroom burger ever.

  5. Jakedown says:

    This burger was the best burger ive had in awhile from any fast food place i mean it was soo amazing

  6. BigBelly says:

    Not sure if we are in a test market, because I can’t find anything online about it, but we had a “Cheddar & Crispy Onion Buttery Jack” tonight, the tv ad for them first appeared last night.

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