With about 80,000 meals to prepare each month for patients, doctors and staff, University of Minnesota Medical Center, Fairview is fighting an uphill battle against rising prices. Compared with a year ago, the cost of meal ingredients at Fairview has gone up 6%. So far, the hospital has raised its cafeteria prices only 3.2%. Fairview Riverside has summoned all its ingenuity to adapt menus and operations to stay within its $4.5 million annual budget, such as buying more local produce, cooking entrees in smaller batches, and switching to reusable kitchenware.