House Republicans are pushing back against Obama administration efforts to promote healthier lunches, saying the Agriculture Department should rewrite rules it issued in January meant to make school meals healthier. They say the new rules are too costly, the Associated Press reports. The bill, approved by the House Appropriations Committee late Tuesday, also questions a government proposal to curb marketing of unhealthy foods to children and urges the Food and Drug Administration to limit rules requiring calorie counts be posted on menus…