Hearty biscuits with sausage gravy are definitely a popular item. I didn't care for diner versions even before discovering the dairy allergy. Leftover meat and gravy works well as a home-made way to deal with leftovers, though.
From the ancient family Betty Crocker cookbook:
Add a thick white sauce with lots of browned ground pork sausage mixed in and you'll be close. Caloric overload warning!
Ah thank you @jacobtothe, I for sure will try Betty Crocker's Southern biscuits with gravy!