Braised Beef with Shallots and Mushrooms

Name: Braised Beef with Shallots and Mushrooms
Ingredients: 1 beef chuck pot roast, cut into serving-sized pieces (about 2 pounds); ½ teaspoon salt; ¼ teaspoon ground black pepper; 1 tablespoon olive oil; 8 ounces small shallots, peeled; 3 cloves garlic, minced; 1 package (8 ounces) mushrooms, cut in quarters; 2 tablespoons all-purpose flour; 1 can (14.5 ounces) diced tomatoes, drained; 1 cup Swanson® Beef Stock; 3 tablespoons balsamic vinegar; 1 tablespoon packed brown sugar; 1 lemon; ¼ cup chopped fresh parsley