Brown ground beef and then add Ranch style beans. Let the mixture simmer on low to warm it.
Cube the sweet potatoes.
Take a 6-12 inch long piece of foil and spray it with cooking spray (I forgot to do this when I made it and it really does make a difference!) Layer with the sweet potatoes, meat mixture, and spinach leaves. I added the cheese when I assembled mine this time, but next time, I will wait until they're done to add it because the cheese stuck to the foil.
Bake 25-30 minutes. Add cheese and other toppings and eat!
Recipe by Melissas Bargains at https://www.melissasbargains.com/sweet-potato-foil-pack-tacos/