I live in London,
Tesco do 97% meat sausages in their finest range that I included after my whole30:
INGREDIENTS: Pork (97%), Potato Starch, Salt, Water, Dried Herbs, White Pepper, Preservative (Sodium Metabisulphite), Nutmeg.
Filled into natural casings.
a piece of fruit from Costa/Starbucks/Nero etc, the spinach and egg pots from Pret a Manger. Most supermarkets also have melon, pineapple, etc pre-chopped into small containers near the sandwiches. bags of chopped carrot sticks and salad pots.
Nakd bars and primal pantry bars.