Easy, Creamy Hamburger Stroganoff

1 lb hamburger
1 onion, diced
1 garlic clove, minced
1 (10 1/2 ounce) cans cream of mushroom soup
1 cup sour cream
2 teaspoons dry mustard
4 tablespoons milk
salt
pepper

Directions

Brown hamburger in large skillet with onion and garlic.
Drain out fat and add soup, sour cream, mustard and milk.
Simmer for 5 minutes.
Add salt and pepper for taste, and serve with egg noodles or rice.