
Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

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I actually disagree with some of the comments here saying no robots can handle this. If you get a robot with a roller/track mop, it can definitely handle wet messes. I do think you want to still pick up the wet food before running it, though and then send it to tackle the remaining wet mess. You really don't want to run food through your robot vacuum or any sort of wet stuff through that vacuum port. That food is going to get sucked into the robot and the base station tubes, and eventually, it's going to spoil and make the whole machine smell like rotting food. It's a mess you don't want to deal with. I agree with the comment that a wet/dry vac (like the new Narwal S20) would be better for this kind of thing if you don't want to pick up the food. They really do function like a vacuum, picking up wet food and mopping at the same time. Its perfect for your use case. But if you don't mind picking up the food first, you can definitely get away with running a roller mop for the liquid spills. Something like the Narwal Flow 1/2 or the Qrevo Curv 2 flow would be good options.
End of reviews

Roborock
Qrevo S
Reliable, great mopping (lifts pads), but poor cable avoidance.

Roborock
Saros 10 Series
Slim, quiet, excellent avoidance, but weak on carpet.

Dreame
L40S Ultra
Superior avoidance, great for pet hair, but poor on carpets.

MOVA
P10 Pro Ultra
Budget king, smart avoidance, but struggles on patterned carpets.

Roborock
Qrevo Curv Series
Great for pet hair; handles high thresholds, but poor avoidance.

Ranked #1
Dreame - X50 Ultra

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Eufy - S1 Pro

Ranked #1
Roborock - Saros 10 Series

Ranked #1
Dreame - X50 Ultra

Ranked #1
Dreame - L40S Ultra