1: Remove stems from the tomatoes.
2: Chop the tomatoes and place them in a mixing bowl.
3: Add chopped red onion to the bowl.
4: Remove stems, ribs, and seeds from the serrano or jalapeño peppers and chop them before adding.
5: Squeeze the juice of one lime into the mixture.
6: Add chopped cilantro to the bowl.
7: Season with Kosher salt and freshly ground black pepper to taste.
8: Add a pinch of dried oregano and ground cumin, adjusting to taste.
9: Stir everything together until well combined.
