In a medium skillet, saute the onions and diced jalapenos until slightly soft
Add ground beef, and cook until brown
Drain any fat from beef, and stir in seasonings
Add water and black beans, cover and cook on medium heat for about 5 minutes or until water is mostly absorbed
Warm large tortillas on griddle, if desired, and fill each with small amount of beef and bean mixture and desired toppings. Roll up and serve immediately
Notes
Use your favorite spices, homemade taco seasoning or your favorite taco seasoning packet.