One-wall kitchen floor plans can be very efficient, provided they are small enough. What’s that you say? Isn’t bigger better? Not when it involves walking back and forth along a long lineup of appliances and worktops! Keep your layout compact, or add an island across from your one wall if you have the space, and turn it into the equivalent of a galley. You could also consider adding a rolling island cart which stows out of the way when not in use, or pull-out work surfaces or cutting boards to add more work space.
Ideally, you want the work sequence to flow from food storage (cabinets, fridge) to prep area (countertop, sink) to cooking center (range, microwave) to eating area. Right to left or left to right is up to you and how your house is arranged. Make sure you also have at least one decent sized (30″ minimum) countertop area to work at.