You’ve probably gone shopping already but I always focus on protein. And I don’t mean artificial protein junk.
Greek yogurt to have with some fruit and a little drizzle of honey.
Packets of cooked chicken to have with iceberg lettuce and a little drizzle of Ceasar dressing and Parmesan.
Thin steaks to have with green beans.
Tins of tuna to have with mayo, chopped spring onion on sourdough crackers.
Basically, my suppression is so high most of the time (but I’m on MJ and appear to be a super responder) that I avoid carbs like pasta, bread and cereals like the plague as if I eat them I can’t eat anything else. So the only thing that tends to go in my body is protein, fresh fruit and veg and a little fat.
And I have electrolyte/vitamin powders for my water. I make sure I drink at least 3 litres of water a day, one of those litres will have a powder in them.