My first thought is to look for something kind of mild to not overpower the food, but still has some earthy/roasted flavors. Maybe a Montenegro spritz?
What time of year will the event be? If it's fall/winter I'd not do a spritz and maybe try something coffee flavored.
Dead Man' Handle
1.5 oz White Tequila
.5 oz Aperol
.5 oz Lime Juice
.5 oz Orgeat
Shake vigoursly over ice and serve in a tall glass over crushed ice. Sprinkle some Tajin on top.
I tried coming up with my own take on this and none of the changes I tried made it better. There's a bar near me that makes their own sesame orgeat and I bet that would be good.