Ingredients: 1 lb. Certified Angus 85/15 Ground Beef 1 lb. Portobello Mushroom (sliced) 1 tbsp. Shallot (finely chopped) 3 cloves Garlic (finely chopped) 2 tbsp Unsalted Butter Swiss Cheese Mayo or Aioli Lettuce (shredded) Brioche hamburger buns...
Prep time: 5 min **Cook time:0 min Total time: 5 min (plus chilling time) **
Prep time: 10 min Cook time: 14 min Total time: 24 min Serves: 8...