Elementary school lunches planned and served under Oregon's Food Pyramid Choice Menus (FPCM) system are based on the Dietary Guidelines for Americans, and they comply with the current U.S. Department of Agriculture menu standards for school lunches. The study discussed in this report was conducted from February through April 1997; data were analyzed during 1997 and 1998. The study was designed to answer the following question: Will a 4-week nutrition education intervention affect the foods selected and eaten by third graders from FPCM? During four weekly Team Nutrition education programs, children played an active role in learning about how the foods they eat grow, the Food Guide Pyramid, healthy meal planning, and taste testing of fruits and vegetables. After the intervention, it was found that third-graders selected and ate more fruits from their lunches and consumed more vitamin A and dietary fiber from lunches than they did before the intervention. Third-graders participating in nutrition education activities appeared to be more likely to increase their intake of fruits, vegetables, and grain products from lunch than did children from nonparticipating classes. The intervention did not show evidence of influencing fat consumption from Food Pyramid Choice Menus. The report concludes that the availability of a wide variety of fruits, vegetables, and grain products in school lunches combined with nutrition education programming that increases awareness of these foods can have a positive effect on their consumption from school lunches, but other types of nutrition education may be more effective in decreasing fat intake from lunches. Includes three appendices: (1) "Nutrition Education Lesson Plans"; (2) "FPCM Menu Items Offered during Control and Intervention Periods"; and (3) "Parent's Questionnaire on 'Readiness to Change'." (LPP)