If you're not much of a cook focus on assembly.
Beautiful marinated mozzarella balls on long plastic toothpicks with a cherry tomato (costco has lovely little tomatoes...don't go with the average grape tomatoes that are pale this time of year). The marinating will add little green and red flecks and flavor to the cheese.
https://www.thekitchn.com/caprese-skewers-recipe-23667362
You could also do hummus cups: a nice hummus at the base with beautiful veggies sticking out. Little Sesame has nice flavors (onion, jalapeno, lemon, tomato) and you can use purple carrots snap peas, pretty veggies. I'd use clear plastic shot glasses.
https://halsanutrition.com/veggie-hummus-cups/
It's not a "main" but people who cook can focus on seared scallops and perfect candied bacon. People also want veggies.