A next-level caprese salad, with peaches and the air-dried, salted beef known as bresaola, tops this tartine. The meat is smoky; the mozzarella, smooth and cool; and the tomatoes and peaches round everything out with their natural sweetness.
Drizzle toasted bread with oil; season with flaky salt and pepper. Divide bresaola evenly between toasts. Top evenly, in a single overlapping layer, with cheese, tomatoes, and peaches. Drizzle with more oil and season with flaky salt and pepper.