It's appalling what passes for food in hospitals, schools, retirement homes institutions that ought to embody the state-of-the-art in nutrition and taste appeal. Now nutritionists Turner and Aronowitz (and the good folks at the Center for Science in the Public Interest) provide 206 tested recipes for healthy and tasty 50-portion dishes, along with tips and techniques for improving current recipes. Published by CSPI, 1501 16th Street, NW, Washington, DC 20036. Annotation copyright Book News, Inc. Portland, Or.