Squash is a good source of potassium. Beans are a good source of potassium. Avocado is high in potassium. Kiwis are packed with potassium, an essential mineral that helps the body maintain proper levels of hydration and electrolytes.
Step 2. Boil 1 to 1 1/2 qt. of water in a large pot. When the water has reached a rolling boil, dump the escarole for 2 minutes, stirring once or twice as the stems soften. Lift the escarole out with a slotted spoon onto a plate and transfer to the colander where you may leave it to drain for up to an hour.
Fill a medium saucepan about 2/3 of the way with water, add some salt and a little olive oil, and bring to a boil. Dump in 1 cup of Israeli couscous and let simmer for about 8 minutes, until the couscous is al dente. Drain, and toss with some butter and parmesan cheese for a yummy side dish.