INGREDIENTS
1 lb
lean ground beef
1 large
egg
1/4 cup
breadcrumbs
1/4 cup
parmesan cheese
1/4 cup
onion
2 tsp
garlic
3/4 tsp
kosher salt
1/4 tsp
black pepper
1/4 tsp
ground nutmeg
3 Tablespoons
butter
3 Tablespoons
flour
15 oz
canned beef broth
1 tsp
worcestershire sauce
1/3 cup
sour cream