Zucchini & Cheddar Frittata

Substituted heavy cream with soy milk and olive oil (2/3 soy milk, 1/3 olive oil for 1 cup of heavy cream equivalent)

My 88 yr old mom liked it. (She is a very picky eater.) I used fresh ground Parmesan and a little bit of other Italian cheese instead of cheddar. Also used half and half instead of heavy cream since I had this on hand.