The lingerie model revealed that the Hell's Kitchen chef had given her advice over the best dishes to prepare for her summer nuptials.
"I do like Marco - he helped me with the wedding menu and he's been really brilliant with giving me advice," Bux told The Sun.
"He told me not to go for hot stuff, but stick to colder food for a summer wedding."
Bux and Lineker will wed in Italy with just 60 close relatives and friends in attendance. The 29-year-old said that she didn't think she would be inviting any of her Hell's Kitchen rivals to the event.
"I doubt I'll ask Marco to come because he might give me that evil stare he does and freak me out down the aisle," she joked.
Bux just missed out on reaching the ITV1 reality show final, when she was voted out of the kitchen on Saturday. Linda Evans and Ade Edmondson will compete to win Hell's Kitchen tonight.