What's the best way to fix uneven drywall?

We installed kitchen base cabinets up against original uneven dry wall and now there is a 1 inch gap where the drywall is uneven (approx 16" long). What's the best method to hide or fix gap now that the cabinets are already installed with countertops?
q what s the best way to fix uneven drywall
  4 answers
Your comment...