Preheat oven to 375 degrees.
Mix together egg, breadcrumbs, Worcestershire sauce, salt, pepper, onion, garlic, parmesan, and Italian seasoning in a medium size bowl.
Add ground beef and stir to combine.
Roll meatballs into balls measuring between 1 and 1-1/2 inches. Place on a baking sheet lined with parchment paper.
Place in preheated oven and cook for 15-20 minutes (lower end of cook time for smaller meatballs), rotating halfway through if they become brown on the bottom.
Remove and let cool completely. Place in a plastic freezer bag and freeze until ready to pack for your camping trip.