UFC fighter Carla Esparza was rockin' more than just a ring at her wedding ceremony over the weekend -- she threw on her new championship belt as she walked down the aisle!!
Carla -- AKA the "Cookie Monster" -- won the title at UFC 274 last week ... when she defeated 29-year-old Rose Namajunas via split decision.
The 34-year-old improved her career record to 20-6-0 with the dub -- and the timing couldn't have been better ... as her wedding day was approaching.