LOS ANGELES – When Los Angeles school lunch bureaucrats realized their new menu of sushi and broccoli and beef with brown rice was roundly rejected by students last year, their attitude was try, try again. black bean mountainThis school year, they’ll be offering what they think are more tantalizing dishes such as taco salad and chicken and waffles. But the L.A. Daily News reports it will be potato and chive waffles with no sugar added, to stay in compliance with new federal lunch regulations championed by First Lady Michelle Obama. Students will also be dining on a “black bean mountain”...