I could give up spaghetti.
Grew up somewhat poor, and spaghetti is overall pretty cheap to make and you can make a lot to last for days, so I’ve eaten a lot of spaghetti in my lifetime. Really sorta burned me out on it so I could give that up. Pizza and burgers are really good, and there no way in hell I could give up tacos. Authentic Mexican tacos (not cheap American stuff or Taco Bell) are my absolute favorite food in the world. I couldn’t give that up.