Rinse lentils and sort through to make sure there are no rocks or twigs—trust me, those don’t get soft when cooked. Place lentils in a 3-5 quart pot or
high-sided skillet with 2.5 cups chicken stock, the salsa, and the taco seasoning. Give a quick stir. Bring to a boil the reduce to a simmer. Simmer, covered, for approximately 30 minutes. After 30 minutes, stir and taste. The lentils should be soft, but still hold their shape. If they’re not quite soft enough, add a little more stock (or even water) and allow to cook for another few minutes or until done.