"Cooked low and slow, this Crock Pot Meatball Stroganoff is made with simple, easy-to-find ingredients and served over mashed potatoes or noodles. The perfect easy weeknight dinner for the family!..."
INGREDIENTS
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1 tbsp unsalted butter
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1 medium onion (diced)
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16 ounces mushrooms (sliced)
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32 ounces frozen (fullt cooked) meatballs
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1 1/2 cups beef broth
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1 tbsp tomato paste
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1 tsp mustard
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1 cup sour cream
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1 1/2 tbsp cornstarch
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2-3 tablespoons water
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salt and pepper to taste