Burgers The Burger Crawl Slater’s 50/50’s Stuffed Lasagna Burger | The Burger Crawl – Ep. 45 Quincy James Freeman3 February 2016029 views Like many the Pizza Burger is my favorite burger at Slater's 50/50. I was glad to see it added to the menu, but disappointed that I would not have it to look forward to every February. Well, that sentiment has been quelled with the Stuffed Lasagna Burger. Sadly, however, I am not sure if I am looking forward to having it again next year.