In a large skillet add the canola oil and bring to a high heat. Next, add in the pork and cook for 1 minute on each side (2-3 minutes total).
Next, add in the onion, and sweet potatoes, and cook for 5 minutes, mixing occasionally.
Next, add in the black beans and salsa. Bring to a simmer, and cook for 5 minutes, mixing occasionally.
After the 5 minutes, check one of the pieces of sweet potato to make sure it is tender. If not, add in some additional cooking time. 1-2 additional minutes should do the trick
Serve the pork with salsa and sweet potatoes with your favorite green vegetable.