pseudo stroganoff

1 lb box WW penne, cooked slightly less than package directions and drained
add shredded leftover beef
1 small can mushrooms pieces
1 can cream of mushroom soup
2 T paprika
1/4 t. crushed red pepper
1 soup can of milk, half and half or cream.

Combine last 5 ingredients over medium heat. Add pasta and cook an additional 5 minutes. Top with sour cream if desired.