Nutritious brussels sprouts and pears team up in this fabulous dish. Roasting brings out the wonderful sweet flavor of the brussels sprouts while the pears and walnuts complement the sprouts beautifully. Walnuts are an excellent choice with the pears, but pecans, hazelnuts, or another type of nut would work as well. The bacon may be omitted if you prefer a vegetarian dish, or change it up a bit with diced cooked pancetta, canadian bacon or diced ham. A rich, syrupy balsamic vinegar is the perfect finishing touch for this dish. A flavored balsamic vinegar like fig, pear or black walnut would be amazing. Drizzle as little or as much as you like over the roasted vegetables.