Nosh / grub - These are informal words for food.

Lets go out for a slap up dinner. / Let's pig out and stuff our faces! - Let's go out and have a lot to eat!

The food was fusion. - There was a mix of two types of food, eg Thai and western European.

I really fancy an Indian! - You're not in love with someone from India - you just want to go for a curry [spicy Indian food]!

Fancy a ruby? - Here, 'ruby' is rhyming slang for 'curry'. [Ruby Murray was one of the most popular singers in the UK in the 1950s.]

I'm starving. I could eat a horse! - you are extremely hungry!

I'm just a bit peckish. - You are not particularly hungry but feel like having something to eat.