A school food crackdown looming in Congress aims to reduce childhood obesity. But it's going over like a wet potato chip at a suburban Denver elementary school where federal agriculture officials pitched the plan Tuesday.

Agriculture officials and Colorado Sen. Michael Bennet visited a Thornton elementary school for lunch with students in second grade. Everybody ate bean-and-cheese burritos with corn and low-fat milk.

It's part of a national sales tour by agriculture officials to promote a school nutrition bill looming in the Senate. The bill would add $4.5 billion over the next decade for meals for poor students. It would also set aside federal grants to help schools afford to buy more local produce.

The bill would also tighten nutrition standards and allow the federal government to ban some snacks. Kids at the lunch gave the plan mixed reviews.

Copyright 2010 The Associated Press.