Beef and Black Bean Stuffed Baked Potatoes

medium 4-5" potatoes or 12 small 2-3" potatoes

olive oil

kosher salt

ground beef

taco seasoning (I used this Mexican spice mix)

water

arrowroot or cornstarch

cooked black beans or 1 can rinsed and drained black beans

shredded cheese of your choice (I used Pepperjack and cheddar)

Optional toppings: lettuce (tomatoes, olives, avocados, sour cream)