Romaine lettuce adds a refreshing taste to these lime-flavored quinoa boats. Did you know that quinoa is not considered a grain, but a seed? It is a very healthy food, since it is high in protein, fiber and vitamins. I like to eat it more often than rice these days. The most popular colors are white, red and black. White is the least crunchy and softer than the other colors, and it also cooks faster (in about 12 minutes). In this southwest quinoa recipe, a mix of red quinoa is tossed with chopped avocado, black beans, corn, cilantro and lime. One tip to making soft, fluffy quinoa is to cook…