Sandwich

A sandwich was piece of food consisting of two pieces of bread with a filling of some sort, originating on, although not limited to, Earth.

References

The Doctor ate one of the Master's sandwiches during a sword fight with him. (DW: The Sea Devils)

Whilst meeting with Colonel Trenchard he ate a plate full of sandwiches, originally ordered by Jo Grant. (DW: The Sea Devils)

Charley Pollard, Viola Learman, Major Ferdinand and the Eighth Doctor made and ate sandwiches whilst being held by the Daleks in Mariah Learman's palace in New Britain. (BFA: The Time of the Daleks)