Exp Bar is literally a 10 minute walk away from Canada Place but I wouldn't recommend going to any restaurants during the lunch break and definitely not between rounds. Just go to the food court or grab something from a food cart (Japadog is super close and Bada Bing / Kaboom Box / stuff around Granville and Georgia is defintely doable). I am not kidding when I say I had to walk further to get from the playing area to my room all in the Waikoloa resort than the places I mentioned.
And yes that's the one. Bella Geletaria. The only gelato I've had in Vancouver that stands up to the stuff in Italy.