Whisk the oil, vinegar, sugar and some salt and pepper together to make the dressing (a fork in a mug will do the trick if you’re short on utensils).
Cut the melon into four wedges and scoop out the seeds. Remove the skin and slice each wedge into long thin slices.
Peel the cucumber and slice into 3mm thick wedges. Slice the tomatoes.
Arrange the sliced melon on a large serving platter and cover with the cucumber and tomatoes.
Crumble the goat’s cheese over the top and scatter over the mint.
Spoon over the dressing and serve.
