3 mushroom swiss burgers potato Recipes

ground beef, dry onion soup mix, potatoes, peeled and shredded, shredded swiss cheese, chopped mushroom

whole large red-onion, sliced, vegetable oil, plus more for grill, button mushrooms, quartered, course salt and ground pepper, ground white-meat turkey, roughly chopped fresh parsley, swiss cheese, thinly sliced, whole-wheat burger buns, lightly toasted, roasted red peppers , cut into 1 inch slices, baby argula , for serving, red potatoes, halved or quartered if large, leeks (about 2 lbs) white and light green parts only , halved lengthwise, & sliced, yellow mustard, evoo, white wine vinegar, course salt and pepper