This is our adaptation of a recipe from Yotam Ottolenghi's cookbook, “Simple.” With gentle simmering and a bit of water to facilitate cooking, cherry or grape tomatoes are transformed into a bold pasta sauce. To ratchet up the flavor, we've added herbs, red pepper flakes and pecorino Romano. Spaghetti or bucatini (a tubular pasta resembling thick spaghetti) pairs particularly well with the sauce, but short shapes such as penne and ziti are great, too.