Impress your loved one with these colorful and nutritious quinoa stuffed bell peppers. Bell peppers are rich in vitamin C, while quinoa is a complete protein that provides essential amino acids. To make this recipe, cook quinoa according to package instructions, then mix it with sautéed onions, garlic, diced tomatoes, black beans, corn, and spices. Cut the tops off the bell peppers and remove the seeds, then stuff them with the quinoa mixture. Bake the stuffed peppers in the oven until the peppers are tender and the filling is heated through. These quinoa stuffed bell peppers are a healthy and flavorful option for a Valentine's Day dinner.