whip the egg whites and the cream of tartar until soft peaks form. add the lemon jce and sugar, gradually. beat until sugar is dissolved. add the strawberries and whip on high for 15 minutes. it will fill the bowl when done. fold in the cool whip.put in crust, it will be full. freeze. just before the big meal, take pie out of freezer and put in ref. it will be pefect to cut. all though, completely frozen is good too. you can use a baked pie crust if desired. if using peaches, add a tsp of peach flavoring. this is great for the hot days of summer too.