Walk north to realize you should go to the kitchen first.
Use the fridge to realize that there’s NO TACO STUFF. Use the cupboard to take at least the TACO SHELLS. Use the window to go outside to visit the shop. Talk to the store to learn that they don’t have taco stuff. This will result in HATE. Use the hate on the store and you’ll get the STUFF. In your inventory use the stuff on the shell to have something to eat. A happy end after all.
Game source: A copy of the game was found here on the internet.