All four versions of the taco will be baked in a pie crust shell and will be served in a traditional taco rack like you'd see at Bel Air Cantina in Milwaukee.
Along with the fillings, the Apple Pie will be covered with a streusel topping, the Cherry will have a sugared "lattice" crust on top, the French Silk is topped with whipped cream and chocolate flakes, and the Key Lime is topped with whipped cream and lime zest.
Fans of the restaurant certainly seem excited about the idea.
"Get one? Ha! Getting all four! Sounds delicious!" said Facebook commenter Kris Backes.
The Diner is located near the corner of Hubbard Avenue and Parmenter Street in Middleton, Wisconsin.