Ricotta salata is a firmer version of fresh ricotta that is perfect for shaving over summer sides like this sweet-and-savory watermelon, fennel, and cucumber salad.
Using a mandoline, slice cucumbers lengthwise into paper-thin slices; slice fennel bulb crosswise into paper-thin slices. Combine cucumbers and fennel in a large serving bowl. Add watermelon, fennel fronds, lemon juice, and oil. Season with salt and pepper; toss to combine. Using a vegetable peeler, shave ricotta salata over salad, and serve.