Southwest Beef Sandwiches



Instructions:
In a 3 or 4 quart slow cooker, combine all ingredients except beef and buns. Add beef; and mix well. Cover and cook on high for 4 hours or on low setting for 8 hours or until beef is tender. Remove beef from slow cooker. Shred beef; return to slow cooker and mix well. To serve, spoon 1/3 to 1/2 cup beef mixture onto each bun. If desired, top with shredded cheese or sour cream.