Crossword clues for the word: ONIONSOUP The word ONIONSOUP has appeared as an answer to at least 10 crossword clues on different crossword puzzles. Crossword clues for ONIONSOUP Showing 1 to 10 of 10 results Clue(s) Bistro menu offering Course often served in a crock Course served in a small crock Dish in a bowl often served au gratin Dish often topped with melted Gruyère French crockful with a cheesy crust French dish with a cheesy topping Introductory French course It often has a crust on top Pungent puree.