Jacob Andrzejczak

Eva Longoria owns Beso, a Latin restaurant in Hollywood, but she brushed up on her Italian skills at Buca di Beppo in Las Vegas over the weekend!

The star made meat sauce, lasagnas and pizzas at the eatery -- a favorite spot of Charlie Sheen's.

Eva is prepping in more ways than one -- she's also gearing up for the final season premiere of Desperate Housewives on Sunday night.