The Yumbo was a great sandwich. The cheese was messy. The cheese was, however, sliced yellow american, not a whiz. They heated the sandwich so that the cheese melted. Goooood stuff!!!!!

There are advantages to being old! The Yumbo was a "plain vanilla" ham and cheese as you could get; similar to the fast food ham and cheese things of today. Yummmmieee!

The Yumbo in Perth Western Australia was a massive size ham and cheese burger (or roll) made by Hungry Jacks (the Australian name for Burger King) it wasn't a sandwich. It was yum! Red Bull another local gourmet food outlet produced a competitor called the Hambo it wasn't as big but just as tasty! I used to work at Red Bull. To make one (because Hungry Jacks don't make them anymore and Red Bull no longer exists) slice a white roll in half, fold in lots of slices of shaved ham, with 2 slices of Krafty type cheese and microwave on normal for about 45 seconds. Just had one this morning. Mmmmmmmmm!!!

I fondly recall the Yumbo and a homemade variation that my mother used to serve to us kids - fried ham in the pan with cheese melted on top served on white bread.

oh yea the YUMBO, it was my favorite BK food, around the late 70's

I liked the Yumbo so much that I re-created it; I shred yellow american cheese and ham, but instead of a bun, I put it on a wrap and spray it with garlic-flavored non stick spray, it makes it get a little crunch to it... a HUGE hit in my cafe, I can't make them fast enough. There are some secrets to preparing it tho :) enjoy!