For the burgers: Coat a stove-top grill pan or griddle with cooking spray and set over medium-high heat to preheat. In a large bowl, combine beef, bacon, salt, and black pepper. Mix well and shape mixture into 4 patties, each about 1-inch thick. Place burgers on hot pan and cook 3 to 5 minutes per side, for medium. Arrange onions alongside burgers and grill 1 minute per side, until just golden. Place cheese on burgers and cook 1 minute, until cheese melts. Serve burgers on rolls with onions on top.
For the black-eyed peas: Heat oil in a large skillet over medium-high heat. Add peas and cook 3 to 5 minutes, until golden brown. Add salt and black pepper, to taste, and stir to coat. Remove from heat and stir in Parmesan and parsley. Serve alongside burgers.
Recipe courtesy of Robin Miller, 2007