A cheery, well lit, Save-A-Lot grocery store — featuring fresh produce, lowcost cereals and meat packaging on site — opened this month on Waukegan's southwest side, an area officials called a "food desert" for underserved residents.The store employs 35 local residents and plans to hire two assistant store managers soon, said Save-A-Lot district manager Thomas Hill, after a dozen officials toured the 10,000squarefoot facility Saturday morning.