Cook the bacon until crispy; drain on paper towels.
Slice the cooked chicken into bite-sized pieces.
Lay the flour tortilla flat on a clean surface.
Spread ranch dressing evenly over the tortilla.
Layer shredded lettuce across the center of the tortilla.
Add sliced chicken on top of the lettuce.
Sprinkle crumbled bacon over the chicken.
Add diced tomatoes and shredded cheese.
Season with salt and pepper to taste.
Fold the sides of the tortilla inward and roll tightly from the bottom up.