Possible Clues:

• Rich pasta dish
• A sauce for pasta
• Creamy pasta dish
• Bacony pasta dish
• Diamonds are real, asked initially? Sauce!
• Type of pasta sauce
• Sauce available in two types of saloon area
• Copy a recipe — just starter and a sauce
• Working in saloon, say, and pub attracting a cheer among Italians
• Copy artist coming back for a plate at Italian restaurant