Pork Tenderloin Tacos

Variation on an online recipe. Very, very good!

1  to 2 pounds pork tenderloin, trimmed and sliced thin
2 T ground cumin
2 t garlic and/or onion powder
1 t dried oregano
salt
pepper
3 tablespoons olive oil, divided
1 yellow onion, sliced
1 1/2 cups chicken stock
1/2 cup chopped cilantro
2 to 3 fresh limes, cut in wedges
About a dozen small corn or flour tortillas, warmed

Toppings optional:

Shredded cheese
Avocado - diced
Greek Yogurt

Add all the spices in a bowl with the sliced pork and coat thoroughly. 

Put oil in a medium/high heat skillet and warm. Saute pork, and remove from pan. Add oil again and saute onion. When clear, add pork. Add broth and reduce. Add cilantro and lime. Cook another minute. Remove and put a few tablespoons in each of the warmed tortillas. Top with topping, if you want!