Gotta be the Food Fantasy Fate/ AU. There isn't even any fanfiction or fan art for it so it's not even an established AU. I just uncovered a second Food Fantasy timeline and remembered having command seals on my body. In that timeline you didn't have just one servant you had 5, you got 3 command seals for each servant summoned but the seals weren't tied to them, for example, if I had to use 5 of my 15 seals to control my berserker, I could. You could not have multiple servants of the same class. So you couldn't have a team of all casters, nor could you have a team consisting of a caster, an archer, a lancer and two sabers. Like in fate/ some food souls could be summoned in multiple classes, for example, Steak could be summoned as a berserker or a saber.

My team consisted of Berserker!Steak, Saber!Red Wine, Caster!Milk, Archer!Brownie and Lancer!B-52.

-Lynn (Food Fantasy Fate/ au Main Character)

In the Fate/ AU tl, a master attendant summoned a team of five, their classes could not repeat, nor could the soul(ex: you could not summon a team of 4 Casters and an Archer, nor could you summon two steaks). Like in Fate/ series, souls could have multiple classes they could be summoned as. For example Steak could be summoned as a Berserker or as a Saber and B-52 could be summoned as a Caster, Lancer, or Rider.

My team was Berserker-Steak, Saber-Red Wine, Archer-Brownie, Caster-Milk and Lancer-B-52. There was someone else who had Black tea as an Archer and Bamboo Rice as a rider. Gilgamesh's role was taken over by Boston Lobster, who I believe was a Saber. His team had Bloody Mary as an Archer and Salt'n'Pepper Shrimp as an Assassin. Boston and BM were freaks toward me and Steak and Red Wine wanted to kill them.

I hadn't wanted to be involved in the grail war, but for some reason, the grail chose me. My family expected me to win and use my wish to make the family powerful again. But I wanted to destroy it. Ultimately, I won the grail war, but my family was garbage, and my food souls were the closest thing I had to family. They died protecting me so that I could win, and I used the wish to bring the five of them back to life.

- Lynn (A Food Fantasy Master Attendant)