thanks for the suggestions, I ended up creating my own recipe as I saw dustin's recipe too late:
2lb ground beef (80/20)
1 egg, lightly beaten
1/4 cup milk
1/2 cup bread crumbs
1/2 cup shredded parmesan cheese
2 tsp salt
2 tsp oregano
1 tsp black pepper
smoked at 300 for 45 mins.
the key was...