My galley is very small and primitive. Fridge with freezer, toaster oven, rice cooker, coffee pot, propane single burner (portable), elec hot plate (portable), small portable grill.
I had a microwave, but it is big and I found I rarely used it. So off the boat it went.
Big fan of the toaster oven. It is only about 500w so easily runs on 1kW inverter. Can fit a full brick of Stouffer's lasagna (favorite treat!!). Makes toast, can warm up things on a ceramic plate, cheese on crackers, etc, etc. Very versatile.
Coffee pot, rice cooker and elec hot plate easily run off inverter. Coffee pot has biggest draw of about 700w. Usually turn off fridge when making coffee, as it is right at limit of inverter.
Curried rice and sauteed fish and steamed frozen veggies- typical boat meal. Pretty healthy stuff.
Slow cooked meals are no problem when cruising. Can't be in a hurry as what the heck else are you going to do?? I'm much more patient cooking on the boat than when on the dirt.
If it is rough, that limits options. My galley kit is not very good at cooking when rough. Also at night it is right behind the helm and the lights bother the helmsman.
I also find that I lose a bit of weight and get better muscle tone when cruising. Good for me all around.
Also tend to spend less money. Fuel costs go up, but less opportunity to whip out the plastic when out there. Total monthly cc bill tends to go down.
I seem to be talking myself into another trip!!!