UberEats is offering a $5 discount on MCDonald’s orders when using promo code GETMCDSDELIVERED. You could also stack this with free shipping codes: COZYEATS1, COZYEATS2, NOV2018FD or NOV2018FD2.
Should get you a small discount if you like MCDonald’s. Hopefully free delivery codes stack. Don’t forget to use your Amex Platinum Uber credits for this month.