The guys behind the boisterously Greek restaurant Cava in Rockville are on a roll. Not only do they have a second location on Capitol Hill, but they’ve also started a line of packaged dips and spreads sold at 14 area Whole Foods, Roots Market in Olney and Clarksville, and Snider’s Super Foods in Silver Spring. The smooth hummus and bright tzatziki are easy to like, but the standout is the “crazy” feta dip, a popular mezze at the restaurant. It brims with green olive oil and gets its name from a surprise ingredient—jalapeños.