Cook bacon in a large skillet over medium-high heat about 5 minutes or until crisp. Place bacon on paper towels. Drain all but 1 Tbsp. bacon drippings. Return skillet to medium-high heat; add beans, sugar and red pepper flakes. Cook 6 to 7 minutes or until lightly browned, stirring occasionally. Top beans with crumbled bacon before serving. Notes: If using turkey bacon, add 1 Tbsp. vegetable oil in Step 2. Recipe may be doubled. For best browning results, cook beans in two batches before topping with bacon.