This is from an eatbetteramerica.com email. I would use eggs instead of egg product--10-12 to make 2 1/2 cups. **Update** I made this for the first time today using swiss cheese, frozen spinach, and 11 whole eggs. The crust was a little more 'difficult' that expected-it stuck really well to what I thought was a well-floured surface and I ended up just pressing it into the botton and up the sides of my quiche dish--in the end it turned out fine. My quiche was definitely done (maybe a little overdone) using the stated times. Overall, my DH and I enjoyed this recipe even though we both would have liked more cheese and a little more salt.