Prepare the cantaloupe: if not already cubed, trim, seed and cut cantaloupe into even 1/2-inch (about 1.25 cm) cubes and place in a bowl. Even-sized pieces ensure consistent texture and make for a prettier plate; slightly chilled melon is more refreshing and holds shape better against the dressing.

Make the lemon vinaigrette: in a small bowl or jar, combine 1 tablespoon extra-virgin olive oil, the juice from 1/2 lemon (about 1 tablespoon), 1/8 teaspoon salt and 6–8 grinds of black pepper. Whisk or shake vigorously to emulsify. Let the vinaigrette sit for 1 minute so the salt dissolves and the lemon aroma opens — this mellows the acidity and lets the oil and lemon bind together for an even coating.

Dress the arugula lightly: place the 2 cups baby arugula in a large mixing bowl. Add 1/2 to 2/3 of the vinaigrette (reserve the rest for finishing) and gently toss with your hands or salad tongs until leaves are lightly coated. Dressing the greens first ensures every leaf gets a whisper of flavor without drowning them; arugula wilts quickly if overdressed, so less is more.

Arrange the salad on plates: divide the dressed arugula between two shallow plates, creating a loose bed in the center of each plate. A shallow bowl or wide plate shows off the colors and textures better than a deep bowl in a composed salad.

Prepare the prosciutto: take each slice of prosciutto and fold or tear it into rustic ribbons or loose rosettes (about 2–3 pieces per slice). Tearing preserves the delicate texture far better than cutting with a knife and gives a silkier mouthfeel.

Place the cantaloupe and prosciutto: artfully nest the cantaloupe cubes over the arugula, then drape the prosciutto ribbons around and over the melon. The interplay of sweet melon and savory prosciutto is the classic Italian contrast — layering them together on the plate allows each bite to combine both flavors.

Add the almonds and finish: scatter 1 tablespoon toasted sliced almonds over each salad for crunch. If your almonds are already toasted (as listed), you can warm them briefly in a dry skillet for 30 seconds to refresh the aroma — don't overheat, or they'll burn and become bitter. Finish with a delicate grating of lemon zest (optional), a final drizzle of the reserved vinaigrette, and a few more twists of black pepper.

Final seasoning and serve: taste one leaf or a small bite and adjust: add a tiny pinch of salt to the melon or prosciutto if needed (prosciutto is salty by itself; add sparingly). Serve immediately so the arugula stays crisp and the textures remain distinct.