There are restaurants dotted around the Fortnite map, and this challenge has you visit two of them.
They don't have to all be done in the same match, either, which should make it much easier. Simply enter the restaurant kitchen to complete the challenge.
The locations of four of these restaurants can be found marked on the map below:
Restaurants include Durr Burger and Pizza Pit.
If you're finding it difficult to reach a restaurant because of enemy players, try playing in Team Rumble mode, where infinite respawns are possible.
Once you complete the challenge you'll be rewarded with 40,000 XP.