Our Italian Eggrolls had seasoned groundbeef, onions, bellpeppers mixed with spaghetti sauce and strips of string cheese (you could use grated mozzarella). I should have put in parm cheese, but I forgot!
My Cheeseburger Eggrolls featured seasoned ground beef, onions (cooked and raw), bellpeppers, mustard, ketchup, pickle relish, cheddar cheese and jalapeno jack cheese.
Make sure your ground beef is well-seasoned!
I'd really like to make some dessert eggrolls next time- maybe a "Smore" one, or a strawberry cheesecake one? Oh man... I'm drooling now.