5 tablespoons unsalted butter 1 1/2 pounds boiling potatoes, peeled and 1/2-inch diced 1 1/2 cups chopped yellow onions (2 onions) 2 teaspoons kosher salt 1 teaspoon freshly ground black pepper 2 tablespoons minced fresh flat-leaf parsley 2 tablespoons minced scallions (white and green parts)
Melt the butter in a large (10 to 12-inch) saute pan. Add the potatoes, onions, salt, and pepper and cook over medium-low heat for 15 to 20 minutes, turning occasionally with a flat spatula, until the potatoes are evenly browned and cooked through. (Allow the potatoes to cook for 5 minutes before turning.)
Turn off the heat and add the parsley and scallions. Serve hot.
Grill Personal Gourmet Veggie Burgers on an oiled rack set 5 to 6 inches over glowing coals about 4 1/2 minutes on each side for well-done.
Make sure burgers are cooked through. Toast sesame buns. Transfer burgers to buns and top with basil mayonnaise and arugula.(Alternatively, burgers may be cooked in a hot well-seasoned cast-iron skillet or ridged grill pan.)