In this quick, elegant dinner, cherry tomatoes are roasted with garlic, shallots, sherry vinegar and a drizzle of honey, turning them into a sweet and savory condiment for simple roasted fish. This versatile, year-round recipe is delicious with juicy end-of-summer tomatoes or even with a pint from the grocery store. Thick white fish such as cod or halibut work best here. Serve with rice, couscous or your favorite grains, and a green salad.