Wolfgang Puck’s reopened Spago has become one of Hollywood’s hottest holiday haunts. “Bridesmaids” breakout Melissa McCarthy was spotted there twice last week, and on Saturday Ryan Seacrest was seen at Puck’s palace, hosting a lunch for his family and girlfriend Julianne Hough. On Sunday, E! star Kim Kardashian and her rapper beau Kanye West shared a pizza and salad by the eatery’s fireplace, said spies, who also saw Kiss rocker Gene Simmons in the house.