Savory Swedish Meatball Bliss

1 large
eggs, slightly beaten
1/4 cup milk (no matter what kind you want)
1 teaspoon salt
1/2 teaspoon black pepper
1 tablespoon olive oil or butter for browning
For the creamy sauce:

2 tablespoons butter
2 tablespoons all-purpose flour
2 cups beef soup (low sodium levels are a good choice)
1/4 cup heavy cream or half-half
1 teaspoon Dijon mustard (optional, for extra zing!)
A pinch of nutmeg (optional but kind!)
Salt and pepper 

to taste
** Let’s do some magic! **
Mix the meatballs magic: In a medium bowl, gently mix the ground beef, chopped onion (or onion powder),
breadcrumbs,