Salmon in Tomato-Olive Sauce

extra-virgin olive oil

medium onion, finely chopped

garlic cloves, finely chopped

plum tomatoes, coarsely chopped

chopped oregano

bay leaves

pitted kalamata olives, sliced

drained capers

sliced pickled jalapeños

center-cut salmon fillets with skin (about 7 ounces each)

Salt and freshly ground pepper