[Software] Ideal? NO

[Rosie] I refer you to an earlier answer. NO.

Think about dreams. Someone else did...

Actually, scrub that. Is it connected with the subconscious?

[Projoy] Subconscious? *audience applause* YES!

[CdM] Let's not just rush in with a random guess.

[Software] Sublime? NO
[Projoy] Superlative self? NO
[CdM] Id? *Audience gasps with the audacious guess, then rapturous applause* YES! The word on the card was Id. One baton winging its way over to CdM...

A bit of a lurker's victory, I'm afraid. So I'll atone with a nice easy VEGETABLE.

Large? It is neither large nor otherwise.

Edible? Yes.
Grass No.

Got a feeling it will =)

Begins with a P? Absolutely not.
A vegetable? No.

Collective noun? No.

[CdM] Burst my bubble, eh?

Man-made? I'm not sure one would usually use that term, but the answer is Yes in the sense that it is processed.

Chrisps? No.

Canned? Can be, but not usually.
Tofu? No.

Just need to get that out of my head.

Tuberous? No.
Fed to animals? Um, I don't see any reason why it couldn't be, although perhaps there is something I don't know about animal digestion that would preclude it. I don't think it is fed to animals on any kind of established or regular basis. On the other hand, googling around to investigate that question, I discovered that -- to my surprise -- I should have labeled this "VEGETABLE AND SOMETIMES ANIMAL".