Answer:
Plant whose name sounds like a dish full of dairy spread.
Runs smoother than any rhyme, loves to fall but cannot climb!
I know a word of letters three. Add two, and fewer there will be!
My first is high, My second damp, My whole a tie, A writer's cramp
It's the only vegetable or fruit that is never sold frozen, canned, processed, cooked, or in any other form but fresh
This food is a tortilla filled with cheese and sometimes chicken before being heated or cooked.