Add the bacon to a large skillet set over medium-high heat and cook until crisp, about 5 minutes. Remove from from the skillet and drain on a paper-towel lined plate. Reserve 2 tablespoons of the bacon bits for a garnishment. Pour off all the bacon dripping except for 2 tablespoons. Add the garlic and red pepper flakes to the skillet and cook 1 minute while stirring.

Add the greens and toss to coat with the bacon drippings. Cook for 3-4 minutes until the greens have just wilted down slightly but remain bright colored. Add the cooked bacon bits, drizzle the balsamic vinegar over the top of the greens and toss to combine.

Transfer the greens to a serving dish and sprinkle the reserved bacon bits on the top