I’m from Germany and I know a “rice salad” that is basically the same recipe, but instead of cheddar and lettuce, you put in rice (obviously cooked) and tuna. And a little bit of vinegar before mixing it, covering the bowl, and throwing it into the fridge until cool.
That said, most people I know, including myself, think it slaps.
Miracle Whip is pretty similar to mayonnaise, though it has some slight differences. Don’t just throw any regular old salad dressing in there, because if they are similar to what I know as salad dressing, then it’s certainly going to end up back here in this community.