Sautéed zucchini is the easiest and most versatile zucchini recipe because you can eat the zucchini on its own, as a side dish, or use them in many other recipes.
Heat up 2 tablespoons extra virgin olive oil in a very large skillet, add 1 medium red onion (finely chopped), and fry on medium heat for 3 minutes, stirring often.
Taste and adjust for salt, then when the zucchini is cooked to your liking, add 1 handful flat-leaf parsley (chopped) and the squeezed juice of ½ lemon.