Cook the bacon in a heavy straight-sided skillet. Remove with a slotted spoon and set aside.
Add the garlic and the greens to the pan and sauté for a minute or two. Add the broth, and bring to a low simmer.
Braise for 10 minutes, until greens are tender and liquid is reduced. Stir in the lemon juice and turn off heat. Stir in the reserved bacon and serve.