3 wild mushroom cheddar burger Recipes

olive oil, unsalted butter, assorted mushrooms (such as cremini, lobster, chanterelles, and stemmed shiitakes), chopped, shallot, finely diced, kosher salt and freshly ground black pepper, chopped fresh thyme leaves, chopped fresh flat-leaf parsley leaves, ground chuck (80 percent lean) or ground turkey (90 percent lean), canola oil, sharp cheddar cheese, hamburger buns, split; toasted, if desired (see below ), chipotle ketchup (optional, recipe follows), ketchup, pureed canned chipotle in adobo (depending on how spicy you prefer it), kosher salt, freshly ground black pepper

olive oil, unsalted butter, assorted mushrooms, chopped (such as cremini, lobster, chanterelles, and stemmed shiitakes), shallot, chopped, kosher salt, fresh ground black pepper, chopped fresh thyme leave, chopped fresh flat-leaf parsley, ground chuck or 1 1/2 lbs ground turkey, canola oil, sharp cheddar cheese, hamburger buns, split, toasted, chipotle ketchup