I was at the UC Friday night for the 8:40PM departure to MUC. The options were salad bar, little sandwiches, meatballs, pesto tofu (don't ask me why) and some soups.
They also had additional snacks celebrating the inaugural flight to CHC but doubt those would be there.

Polaris does have better options (a lot more on the buffet) and the dine-in option is a step up from the buffet, an ok replacement for a quick dinner assuming you will get something proper aboard business class in your long haul.

IMO if you want a quick bite then the lounges are ok, but if you want a proper dinner meal then eat somewhere else besides the airport (I wonder if you can door dash in n out or good mexican food)