Layer the bottom of a 9-inch glass container or baking dish with the pico de gallo. If you don't buy this store-made, the recipe is simple: 1 medium chopped tomato, 1/2 a medium chopped yellow onion, 1/2 a chopped jalapeño — with or without the seeds, juice of one lime, a handful of chopped cilantro, and a pinch of sea salt). Be sure to drain any excess liquid from the pico.