Cook Pasta according to directions on box.

In a large pasta bowl mix 1/2 the spinich, zest from 1 lemon , half the ricotta cheese & some of the grated parm. cheese.

when pasta is done pour half on top of spinich mixture. Then pour the rest of the spinich, zest from remaining 2 lemons & cheeses

Oh ! save some pasta water. I like to mix in about 1/4 cup to keep it moist.

To change it up a bit you can sautee a clove of garlic in a little olive oil and throw it into the mixture at the end. Enjoy