Hard to give a definitive answer, because people have different habits of how much they use, also whether you are serving the pasta as first or main course, plain or with protein added. Given all that, you can use as a starting point about 1 1/2 cups sauce per lb of dry pasta (translates for your 1 1/2 quarts to 4 lb pasta). Then adjust amounts as your meal or your people need.
/ad3c2bd8-089b-4747-8110-5a496551be4a--2020-0413_lyndsay-bettle-fennel-bacon-ragu-genius-final_3x2_james-ransom-086.jpg)
1 Comment
Given all that, you can use as a starting point about 1 1/2 cups sauce per lb of dry pasta (translates for your 1 1/2 quarts to 4 lb pasta).
Then adjust amounts as your meal or your people need.