Ingredients:
- 4 strips bacon, sliced
- 3 cloves garlic, sliced
- 1 onion, sliced
- Pinch red pepper flakes
- Kosher salt and freshly ground black pepper
- 3 bunches dark leafy greens, such as kale, mustard greens, Swiss chard and collard greens, stemmed and inner ribs removed, leaves roughly chopped
- 1/2 cup chicken stock
