11.   Heat the oil and butter in a large heavy stock pot over medium heat.

12.   Heat the vegetable oil in a heavy stock pot or medium saucepan.

13.   Heat the olive oil in a large heavy stock pot over medium heat.

14.   Heat a large, heavy stock pot over medium-high heat until quite hot.

15.   Heat in a stock pot over medium heat.

16.   Heat the oil in a large, heavy-bottom saucepan or stock pot.

17.   In a large stock pot, heat the milk until hot, but do not boil.

18.   In a large soup or stock pot, heat oil over medium heat until hot.

19.   In a large stock pot, combine the sauteed vegetables with all the remaining ingredients except the cheese and bring to a boil.

20.   In a large stock pot, heat olive oil over medium heat and saute the celery, onions, carrot and garlic until onion is transparent.