Ready in 45 minutes
This spicy beef mixture is great used in tacos, enchiladas or quesadillas.
Trim the roast of any excess fat, and season with salt and pepper. Heat olive oil in a large skillet over medium-high heat. Place meat in hot skillet, and brown meat quickly on all sides.
Transfer the roast to a slow cooker, and sprinkle onion over meat. Season with chile peppers, chili powder, cayenne pepper, hot pepper sauce, and garlic powder. Add enough water to cover 1/3 of the roast.
Cover, and cook on High for 6 hours, checking to make sure there is always at least a small amount of liquid in the bottom. Reduce heat to Low, and continue cooking for 2 to 4 hours, or until meat is totally tender and falls apart.
I usually substitute a can of diced green chiles for the peppers and use less hot sauce.