Here's my galley.
I'm just finishing my 5-foot wide tear. I haven't camped in it yet.
I tried to adhere to the K.I.S.S. principal while maximizing storage space. One thing I hate about tent camping is having to put all my food in the car at night, then, taking it all out again in the morning. If you leave food out at night, sooner or later, you'll have four-legged company. I like the idea of simply closing the hatch and going to bed.
I used sliding doors for my upper galley cabinets. Sliding doors are easy to make and don't require hardware to keep them closed while towing. The left and center sections have shelves. The right compartment has no shelf to accomodate tall items like cereal and pasta boxes.
On the bottom left, I have a slide out cooler drawer. I use a sliding door bolt to keep it from slamming into the hatch while towing.
The bottom center compartment holds a 7-gallon Aquatainer jug. I also installed 110 volt and 12 volt outlets here.
On the bottom right, I have a small enclosed cabinet. At the top of this cabinet, I have a silverware drawer. The drawer is a little tight for the first couple of inches of travel. It shouldn't open up while towing.
Below the drawer, I have my electrical closet. It holds my battery, an inverter, a charger and a 12-volt fuse box. Not shown on the curb side of the trailer, is an electrical cord hatch for bringing in shore power. The door is held closed with self closing hinges. That should be sufficient since all the electrical components are screwed to the walls and floor of the cabinet.
I used Formica on the counter. I also laminated wood grain pattern Formica to the plywood sides.
You'll notice I don't have a stove in my galley. In order to save counter space and avoid spattering grease on my cabinets, I'll place my Coleman Grill Stove on a stand next to the galley.