Boil pasta in well-salted water until tender, then drain and set aside.
Heat oil in a large pan and cook diced onion and minced garlic until soft.
Stir in a spoonful of flour for one minute, then slowly whisk in the milk until the sauce thickens.
Lower the heat, add shredded cooked chicken, and warm it through for a few minutes.
Take the pan off the heat, stir in yogurt, add the pasta, and season with salt and pepper.
Nothing to buy.
About 30 minutes.
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