Lay a tortilla flat on a clean surface.
Spread a tablespoon of ranch dressing evenly over the tortilla.
Add mixed greens in the center of the tortilla.
Layer the sliced chicken on top of the greens.
Add halved cherry tomatoes and diced cucumber.
Sprinkle shredded cheese over the top.
Season with salt and pepper as desired.
Fold the sides of the tortilla inward and roll it up tightly from the bottom.
Slice the wrap in half and serve immediately.