A simple Salad

I know most of everybody is able to prepare a good salad, but this one is a simple one I really love...
1 Oak leaf lettuce
6 cherry tomatoes
1 small onion
Parmesan
1 garlic clove
Olive Oil
Balsamic vinegar
Mustard
Rinse the salad & tomatoes.
Chop the garlic and slice finely the onion
Prepare the vinaigrette with olive oil, balsamic vinegar, the garlic and mustard. I don't measure these, as I like my salad sauce 'strong' and tasty.

Put the salad in a bowl, garnish with the cherry tomatoes and and parmesan shavings. Poor the vinaigrette.