Turkey-Avocado Clubs

thinly sliced red onion

apple cider vinegar

slices turkey bacon

Hass avocado, halved and pitted

nonfat plain Greek yogurt

Kosher salt and freshly ground pepper

slices whole-grain bread, lightly toasted

small leaves romaine lettuce

tomato, cut into 8 slices

sliced low-sodium deli turkey breast

small English cucumber, sliced