Saute prosciutto and onions in a frying pan in the extra-virgin olive oil, rosemary and hot peppers on high heat, until the prosciutto and onions are browned. Add the lentils to the pan. Cook for a few minutes so that the lentils absorb the flavors of the other ingredients. Add a pinch of salt, but be cautioned that the prosciutto is already quite salty. Remove the rosemary sprig and plate the lentils. Serve warm or at room temperature.
Recipe courtesy of David Rocco