Cook a pound (one box) of spaghetti to box directions. I love thin spaghetti but really, it can be any pasta.
In a bowl, zest one to two lemons depending on your taste. I usually do two... Juice the lemons into the bowl. Usually the two lemons will make a nice amount of juice but depending on their size, you may need a third. While whisking, add extra virgin olive oil to emulsify the dressing (combine it) little by little. Taste it to see if more is needed, then add more, or don't! Cooking's not a science, baking is. Grate or add grated parmesan to the mixture. I only add about 1/4 cup because I love to sprinkle a LOT on later. Add S & P to taste... Sometimes I add chopped, fresh parsley or basil. Whisk well.
Using a slotted spaghetti spoon, transfer the pasta directly from the pot, HOT, into the bowl with the lemon "sauce". Toss well & serve hot or room temperature. This pasta even tastes great cold!
Yes, it's that easy! And DeLish. Enjoy!