Sautee the onion and garlic in the olive oil until soft. Add Â the swiss chard and toss. Add about 1/4 cup of water to the pan and put a lid on it until the chard has wilted. Depending on the size of your pan, you might need a half of a cup of water. When wilted take off the lid and add the white beans. Heat through and it should be done by the time the water has evaporated.