Wash and dry the fresh produce. Grate the grand cru on the large side of a box grater. Quarter and deseed the lemon(s). In a medium bowl, combine the mustard, mayonnaise, fig spread, and the juice of 2 lemon wedges (or 4 wedges for 4 servings); season with salt and pepper. Stir to combine. Add the arugula and toss to coat. Add the juice of the remaining lemon wedges if desired.

Wrap the tortillas in a damp paper towel and microwave on high 30 seconds to 1 minute, or until heated through. Place the warmed tortillas on a work surface. Evenly divide the dressed arugula, prosciutto (tearing into small pieces before adding), and grated grand cru among the center of the bottom half of each tortilla (the half that is closest to you). Fold the three adjacent sides over the filling, holding them in place so the filling is covered. Roll away from you, tightly tucking in the sides as you roll into a wrap. Halve the wraps on an angle, seam side down. Enjoy!