Grilled Chimichurri Chicken Avocado Salad

batch Authentic Chimichurri

skinless chicken thigh fillets (, (no bone) or chicken breasts)

olive oil

Romaine ((or cos) lettuce leaves, washed and dried)

ripe tomatoes (, sliced)

a red onion (, sliced)

avocados (, sliced)

Fresh parsley leaves (, to garnish)