banana
I haven't got a banana. I haven't got (any) bananas.
cake
I haven't got (a/any) cake.
fish
I've got (some) fish.
sausage
I've got a sausage. /I've got (some) sausages.
apple
I've got an apple. / I've got (some) apples.
pizza
I've got (a) pizza.
sandwich
I've got a sandwich.
chicken
I haven't got (any) chicken.
milk
I've got (some) milk.
steak
I haven't got a/any steak.
peas
I haven't got (any) peas.