"Nothing says Christmas dinner like a Rosemary Beef Tenderloin recipe. Fresh rosemary and garlic make this the perfect special occasion dinner!..."
INGREDIENTS
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3 Tbsp olive oil (divided)
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16 oz. white mushrooms (sliced)
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2 large shallots (sliced)
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1 Tbsp fresh rosemary (chopped)
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2 Tbsp garlic (minced)
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salt and black pepper (to taste)
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3 lbs. beef tenderloin roast
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1 large red onion (sliced)