Romaine lettuce is very green
You're right about that. I like using romaine lettuce when I make stews and soups, because it's tolerant of heat unlike most lettuces. Keep's the crunch!
Which salad dressing is your favorite?
Italian dressing
Italian dressing is a vinaigrette-type of salad dressing in United States and Canadian cuisine, consisting of water, vinegar or lemon juice, vegetable oil, chopped bell peppers, usually sugar or corn syrup, and a blend of numerous herbs and spices including oregano, fennel, dill and salt. Onion and garlic can also be used to intensify the dressing’s flavor. It is often bought bottled, or prepared by mixing oil and vinegar with a packaged flavoring mix consisting of dehydrated vegetables and herbs.
North
Romaine lettuce
Romaine or cos lettuce ("Lactuca sativa" L. var. "longifolia") is a variety of lettuce that grows in a tall head of sturdy dark green leaves with firm ribs down their centers. Unlike most lettuces, it is tolerant of heat. In North America, romaine is sold as whole heads or as “hearts” that have had the outer leaves removed and are often packaged together. 
Commercially sold romaine lettuce has historically been the subject of product warnings by both U.S. and Canadian health authorities