Chickpea and Chorizo Tostadas

Crunchy, creamy, chorizo-y—these quick tostadas hit all the notes. If you normally throw the stems from a bunch of cilantro or parsley straight into the garbage...DON'T! They're delicious, and can be diced finely and stirred into all kinds of things—like the lime yogurt in this recipe—to add herb-y flavor and crunch.