This anon returned to a staple diet mainly of fish and veggies procured from local markets, home baked sourdough, butter, olive oil, and the occasional steak or chicken.
Anon eats at a restaurant only if no choice in the matter.
One thing to consider with processed foods is nanotech additives. Same with pharmaceuticals. No one can completely escape, but it has been of great benefit, both physically and spiritually, to bring as much control back into the home kitchen as is feasible in the modern world.