Its a taco, its a calzone. Who cares. Its good and it will feed a crowd, inexpensively and without too terribly much effort on your part.
1 lb pizza dough
about 4 oz black beans
1/2 cup cheddar cheese- shredded
1/4 cup salsa
1/2 cup shredded leftover meat (turkey works well)
Let the pizza dough rise at room temperature on a cutting board with about 1tbsp of vegetable oil coating it.
When it is room temp and bubbly, stretch it out to about an 11" x 9" square
Make rows of beans, cheese, meat and salsa on the stretched dough
fold over each ingredient (you'll get this pleasant striped effect when you cook it...)
Bake in a 350 degree oven for about 35 -40 min
Slice and serve with salad.