1 pound pork loin center roast, boneless
2 cups refried black beans, or refried pinto beans
1/2 cup pickled jalapenos
3 tomatoes, sliced
1/2 cup cilantro, chopped
1/2 cup non-fat mayonnaise
6 bolillos, sliced in half
Heat oven to 350 degrees F. Roast pork until the internal temperature as measured with an instant-read thermometer reaches 145 degrees F., about 20-30 minutes. Remove pork from the oven and allow to rest for about 10 minutes. Transfer pork to a cutting board and carve into very thin slices.
Use your fingers to hollow out the bottom half of the bread. Spread 1/3 cup of beans in the hollow of each half. Arrange 3 to 4 pork slices over the beans; layer on the pickled jalapeños, tomatoes and cilantro. Spread mayonnaise on the top half of the bread and place on top to make a sandwich.
Optional: Add avocado slices for additional flavor.
Make 6 sandwiches.