Southwestern Beef Wraps

1 onion, chopped
2 1/2lb beef roast, trimmed of fat but left whole
1 heaping tsp chili powder
1 heaping tsp garlic powder
1 heaping tsp cumin
1 heaping tsp salt
2 bell peppers (or 1 bell pepper and 1 red, yellow, or orange pepper)
14 1/2oz can of Mexican-style diced tomatoes or 1 can Rotel
Small flour tortillas
Desired toppings: salsa, guacamole, shredded cheese, chopped cilantro, etc.

Place onion in bottom of slow cooker. Mix spices together and rub them over roast. Place roast over onions and place peppers on roast. Then pour canned tomatoes on everything. Cook on high for 5-6 hours or low from 8-9 hours (or high until boiling and then low until dinner time - if you start it in the morning). Shred meat and serve with desired toppings.

Taken from ourbestbites.com