A Better Burger

A BETTER BURGER

1 pound lean ground beef
2 oz extra sharp cheddar cheese, finely shredded
8 oz shiitake mushrooms, stemmed
3 dill pickles, thinly sliced
1/2 head lettuce, shredded
2 tsp tomato paste
3 tbs reduced fat mayonnaise
1 small onion, finely chopped
Salt and Pepper
1 tbs + 1 tsp olive oil
Four potato rolls, split

Heat a grill. In a skillet, heat 2 tsp oil. Add the mushrooms, season with pepper and cook until browned and tender. Add 2 tbs water and cook turning the mushrooms until the water is evaporated. Transfer to a cutting board and let cool. Finely chop the mushrooms and transfer to a bowl.
*Add the remaining oil and onion to the skillet. Season with pepper and cook until the onion is tender and golden. Let cool. Add half of the onion and the beef to the mushrooms, season with salt and mix well. Form the mixture into 8 patties.
*Transfer the remaining onion to a bowl, then stir in the mayonnaise and tomato paste. Spread the sauce on both faces of the rolls and arrange open faced on each of 4 plates. Divide half of the lettuce among the roll bottoms.
*Add the patties to the grill and cook 2 min. Flip, divide the cheese among the patties, cover with foil and cook until melted. Stack 2 patties on each roll bottom, top with the pickle and remaining lettuce and set the roll tops in place, then serve.
MAKES 4 SERVINGS OF BURGERS...