Baked Mac and Cheese with Sour Cream and Cottage Cheese
Ingredients:
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cooking spray
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1 (16 ounce) package elbow macaroni
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2 (8 ounce) packages mild Cheddar cheese, shredded, divided
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1 (8 ounce) package sharp Cheddar cheese, shredded
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¾ cup sour cream
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¾ cup cottage cheese
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1 egg
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salt and ground black pepper to taste