Mix together your flour, salt and pepper in a large plastic zipping bag

Add your beef cubes, seal the bag and toss the beef in the flour mixture until well coated

In a large, deep skillet, heat your oil over medium-high heat and add your coated beef

Saute your beef in your skillet until it is brown (about 6 minutes)

Place your browned beef in your crock pot

Sprinkle your soup mix evenly over your beef

In a bowl, use a whisk to combine your broth, tomato paste and Worcestershire sauce

Once combined well, pour over your beef

Cover and cook on low for 8 hours, until beef is tender

Add your noodles and cover and cook for 30 more minutes, until the noodles are tender