You could really use any combo of veggies here. This is just one example using spring veggies. Also try adding greens like lettuce or even the tops from the radishes!
1-2 cups cooked chicken, chopped
¼-½ cup scallions, thinly sliced at an angle
½-1 bunch radishes, sliced
handful of snap peas, snapped and chopped
½-1 bunch cilantro, washed and chopped
4 TBLS olive oil
2-3 TBLS lime juice (or lemon/vinegar)
Seasonings to taste: cayenne powder, cumin, salt, pepper