made this but i dont think i did it right and i also dont like pink in ground beef. i used 90+% lean beef and well that didnt work so next time ill use a fattier meat. my potato also did not cook all the way but agian i made it to thick i think and it didnt have grease to wallow in. so you can imagine my dissapointment when i realized this so after scraping and microwaving i did salvage some of it and what i got was very nice. i can imagine onions mushrooms and gravy making this a coronery special but yes very good and very juicey with real nice cheese flavor and the potato keeping the burger moist through the whole thing. still a great recipe and i will try it again.