Christian Benteke scored on his long-awaited return from injury as Villa secured their first league win of the Barclays U21 Premier League season at Bodymoor Heath.As well as the Belgian international, Gordon Cowans named Shay Given, Jores Okore, Joe Cole and Jack Grealish in his starting XI and their experience told as the claret and blues dictated play from start to finish.They carved out their first opportunity after just four minutes when Riccardo Calder headed wide from right-back Tom Leggett's right wing cross.With his trademark runs, winger Grealish shone throughout and began to link-up well with Benteke.The home side took the lead through Benteke's calm penalty after Bolton's Andy Hughes handled in the box.Grealish almost doubled the lead moments later when his rasping shot crashed off the crossbar after a fine individual run - something he carried out throughout the 90 minutes.Summer signing Cole played the full 90 minutes and his range of passing unnerved the Trotters' backline and the 32-year-old was unfortunate to see a couple of efforts drift wide of the post.He didn't have to wait long to get on the scoresheet, though, when just shy of the hour, he picked up a loose ball after Bolton had failed to clear and curled his shot into the top left hand corner leaving Ross Fitzsimmons rooted to the spot.The visitors were presented with a glorious opportunity to reduce the deficit when Henry Cowans' trip in the area saw referee Gareth Mellor award a penalty but Zach Clough could only blaze his shot over the bar from 12 yards.With 13 minutes remaining, Grealish danced his way past a number of white shirted defenders - found Cole free on the edge of the penalty area but the former Chelsea man's first-time volley sailed just over the bar.Substitute Strain put the icing on the cake when he tapped home from close-range after Fitzsimmons could only parry Grealish's cross.VILLA U21: Given, Leggett, Wildin, Cowans, Okore, Toner (Webb 76), Sellars, Calder, Benteke (T Strain 63), Cole, Grealish. Unused subs: Watkins, Crooks, Abdo.BOLTON U21: Fitzsimmons, Maher, Perry (Campbell-Young 57), Finney, Taylor, Hughes, Clayton (Lester 72), Vela, Illiev (Woolery 57), Clough, Hall. Unused subs: Sellers, Campbell.