Spaghetti marinara is an Italian dish. Spaghetti marinara contains â€˜marinara sauceâ€™ and other ingredients. Marinara sauce contains tomato, garlic, onion and herbs. This sauce gives a tangy taste and red color to spaghetti marinara. Not only in Italian cuisine, but in American cuisine also, spaghetti marinara is a very popular dish. Seafood like shrimps and chopped squids can also be added to the dish for fish mongers.