Place the tortillas side by side on a paper plate. Slice tofu, and place slices down the center of each tortilla. Sprinkle cheese over the tofu. Cover with a damp paper towel, and heat in the microwave for about 45 seconds, or until cheese is melted.
Pile some spinach onto each tortilla, and pour on some Ranch dressing. Sprinkle with Parmesan cheese, roll tortillas around the filling, and eat.