My mother used to make what were called "Western Burgers" for the same purpose ... she worked at a bank where on Friday's they worked until 8:00PM. We would just take the burgers out of the freezer and pop them in the oven for 20 minutes.
I never did have a "recipe" ... neither Mom or I cook with them. We just "guess" the amounts of the ingredients.
Ground beef - browned and drained
Velveta Cheese - cube it and toss into the browned and drained ground beef - use enough cheese to get the beef well coated, but not sloppy.
Sliced black olives - toss them in with the cheese
Cook over low heat, stirring regularly to coat the beef evenly
When all the cheese is melted, put the mixture on hamburger buns and immediately wrap with foil then put them into the freezer.
Cook frozen and still wrapped burgers 20 minutes on pre-heated 250 oven. The buns get slightly toasty!!