Melon with Coulis

Cut melon in half and scoop seeds and enough juicy flesh from center to measure 3/4 cup. Purée in a blender with sugar and lemon juice until seeds are almost completely ground and mixture is creamy, about 2 minutes. Strain through a fine-mesh sieve into a bowl, pressing on and then discarding solids. Meanwhile, cut melon into 6 wedges and remove skin. Cut each wedge into thin slices and serve drizzled with coulis. Garnish with mint if you wish.