All you need-
good olive oil
mustard and herbs to your liking. Fresh parsley, chopped chives, and grated pepper are also lovely finishing touches.
Mix in a glass bowl, whisk with a fork and dress and toss your salad and serve.
Just the other day, a dear friend dropped in for lunch and she said, you need to post more about your "french" background and I laughed as you see I am not french but am married to a man who grew up in France, so I guess all his French has influenced me and my life. So our subject immediately went to France and food. It's true, the French know how to live life by simply using the freshest ingredients.
Simple salad ingredients shared are the best.