Mashed Potatoes with russet

2 lbs russet potatoes , scrubbed and peeled salt 1 lb kale , about 1 large bunch, with the ribs removed and the leaves washed 1 1/4 cups low-fat milk 2[...]

1 1/2 lbs russet potatoes , peeled, rinsed, cut into large chunks 3/4 lb carrot , trimmed, cut into 2-inch pieces 1 1/2 tablespoons unsalted butter , softened[...]