Meat ball subs // juicy meatball sub recipe

1&3/4 cup lean ground beef or any ground meat of your choice.
1 -2 tablespoons olive oil
2 cups crushed canned tomatoes with basil or 6 crush Roma tomatoes.
2 teaspoons Italian seasoning
1 teaspoons garlic powder
1 teaspoon salt
1 teaspoon red pepper flakes
1 teaspoon dried parsley
1 teaspoon all purpose meat seasoning ( optional)
1/4 cup milk
1/2 cup bread crumbs ( I used seasoned)
1-4 cup shredded mozzarella (optional)
1 egg lightly beaten.
3 - 6 hoagie rolls