Eggos are also made at plants in San Jose , Calif . , and Blue Anchor , N.J. 1 bag ( 16 oz ) frozen spinach. thaw in microwave for 3 min. mix spinach , 4 eggs , 1 box crumbled feta cheese ( 4-6oz ) , 2.5 TBSP dill ( fresh or dried ) , salt / pepp to taste .