Shops are never very far from food outlets, and vice versa.

Certainly. Relax and let your food come to you.
Home Deliveries.

Yes, Forum. Conveniently located on Orchard Road.
Forum   Orchard Road.

Air conditioned food centres found in almost every shopping mall. Convenient and reasonably priced.
Food centres

A shopper's dream, every year from end May to early July.
Great Singapore sale.

There are many 'purely'
vegetarian restaurants.

Mustafa, IKEA, Spotlight, China Square,
Holland Village.

Very often, in most restaurants.

Chilli crab, curry fish head, durian.
Food Courts.