Alfredo anyone??

So I made this super yummy and way easy alfredo sauce tonight and it turned out really good. I had leftover shrimp and chicken from the other night and really didn't want to cook something new so I just made this sauce and cooked up some noodles and whala a whole new meal!

Alfredo sauce:

1/4 cup flour
2 T olive oil
1 T butter
2 garlic cloves minced
1 onion peeled and cut in half, core still attached
3 cups milk
1/3 cup cream cheese
1/2 cup grated Romano cheese
salt and white pepper to taste

Melt the butter and oil and saute the garlic and add the split onion, add the flour and cook your roux for about a minute, add the milk, bring to a boil to thicken, if too thick add more milk. Add cream cheese and Romano cheese, reduce to a simmer. Season to taste and remove onion. Supper simple and ooooooo so YUMMY!