Mashed Potatoes with Kale and Leeks

8 medium red potatoes 2 cups kale , chopped (_not_ packed too snuggly ;) 1 medium leek , thinly sliced 4 cloves garlic , minced 4 tablespoons olive oil ,[...]

12 ounces Yukon Gold potatoes (about 2 medium), unpeeled 2 ounces sliced pancetta* or 3 bacon slices, chopped 3 tablespoons extra-virgin olive oil 2 cups[...]

3 lbs russet potatoes (about 6) 6 leeks , chopped, washed well, and drained (white and pale green parts only) 6 tablespoons unsalted butter 1 tablespoon fresh[...]

2 lbs potatoes , cut in cubes (peeling optional) 1 tablespoon olive oil 1 tablespoon garlic clove , minced 1 small leek , white part only, chopped 1[...]