I am off grid with solar. I use my ninja foodi nearly every day. With full sun I can run straight from the solar panels. If I have to run on battery I can run the air fryer full power for one hour with 25% of my batteries. With the pressure cooker or slow cooker I can run for hours because they dont run the heating element full time. I barely use propane anymore for cooking with the foodi for baking and air frying and I use an induction stove for the rest of my cooking needs.
That leaves the propane for heat, hot water, and the backup generator.
Unfortunately we are in Michigan - not a good state for solar. Sounds like you have a great setup.