This is my ‘Christmas Cozy Bowl’ – everyone comes back for seconds!

1 pound ground beef
1 medium onion, chopped
2 cloves garlic, minced
1 can (10.5 ounces) cream of mushroom soup
1 cup sour cream
1 cup shredded cheddar cheese
8 ounces egg noodles
Salt and pepper to taste
1 tablespoon olive oil
1 teaspoon dried parsley (optional)