烤肉、饺子销量倍增，北京多家餐饮加量供应“暖冬菜”迎冬至

Group 1 - The core viewpoint of the articles highlights the anticipated surge in demand for winter seasonal dishes, particularly during the winter solstice, with various renowned restaurants preparing to meet consumer needs [1][2]. Group 2 - Several traditional restaurants, such as 烤肉季 and 老西安饭庄, are preparing significant quantities of ingredients, with 烤肉季 planning to have thousands of kilograms of selected lamb cuts ready for the winter solstice [1]. - 老西安饭庄 expects to sell over 600 bowls of its signature lamb soup on the winter solstice, with a nearly doubled supply of beef and lamb broth [1]. - 砂锅居 is introducing a new dish, 酸菜炉肉砂锅, which will be available on the winter solstice, showcasing innovation alongside traditional offerings [1]. Group 3 - 袁记云饺 is gearing up for the winter solstice with a comprehensive supply plan, especially in the North China region, where last year's sales saw a significant increase of over 200% compared to the previous week [2]. - The company has optimized its operations, including extending store hours and increasing inventory for popular products to meet the expected consumer demand [2]. - Last year's performance in various commercial districts in Beijing was strong, prompting 袁记云饺 to increase supply in key areas this year [3].