Toradora!: SOS! seems to be is what happens when a creator has an idea for an original shorts series but lacks the courage, budget, or both to make a new original IP, so they slap a successful IP's name onto it.
On the one hand, it's an amusing series of shorts about five friends eating/talking about Japanese cuisine that even includes a few bits of educational trivia. On the other, it simply doesn't feel related to ToraDora! in any way, shape, or form. While the characters occasionally say a line or two that reminds you of who they were in the original series, most of the time they feel like original characters. The only part of the episodes that really felt like ToraDora were the endcaps with Inko in them doing the same style of gag she does in the original show.
I might have enjoyed this more if I went into it expecting some characters I don't know talking about food (I'm actually a huge sucker for food anime AND short anime) but since I went into it expecting a reunion with a series I loved and not really getting that, I felt baited and switched, and it meant the series ended up leaving a bad taste in my mouth... pun intended.