Whenever I see this dish, I say ‘Put this stuff in my belly now!’

1 tablespoon olive oil
1 large onion, chopped
2 cloves garlic, minced
1 pound ground beef
1 teaspoon salt
1/2 teaspoon black pepper
1 teaspoon smoked paprika
4 tablespoons flour
2 cups beef broth
1 cup whole milk
1/4 cup sour cream
6 large russet potatoes, peeled and thinly sliced
1 cup shredded cheddar cheese
2 tablespoons fresh parsley, chopped