I made grilled cheese tonight. Used mayo (Hellman's) for the fat source. Was v. good. Normally use olive oil but I think I will switch to mayo, going forward. One of my kids loves grilled cheese and one of them hates cheese (except on pizza).
We always had Miracle Whip in the house instead of mayo, growing up. Mayo is a lot better than Miracle Whip. Good for sandwiches, burgers, fries, everything.