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This is the kind of dish that looks like you worked all day… but really didn’t. A simple yet elegant one-pan meal featuring tender beef tenderloin, caramelized onions, and earthy mushrooms, all roasted to perfection with a flavorful blend of seasonings.
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Preheat oven to 450°F.
Place the beef tenderloin in a large baking dish. Rub it all over with smoked mustard, olive oil, smoked paprika, salt, and pepper.
Scatter the sliced onions and mushrooms around the meat in the baking dish.
Drizzle Worcestershire sauce and soy sauce over the meat and vegetables.
Roast the dish uncovered in the oven for 25 minutes.
Remove the dish from the oven, cover loosely with foil, and let the meat rest for 10 minutes before slicing.
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For even more flavor, marinate the tenderloin with the mustard and spices for a few hours before cooking.
Use a meat thermometer to ensure the tenderloin is cooked to your preferred doneness. Medium-rare is typically 135°F.
Feel free to substitute the mushrooms with your favorite varieties, such as shiitake or cremini.
Serve with a side of mashed potatoes or roasted vegetables for a complete meal.
Can I use a different cut of beef?
Yes, you can use other cuts like sirloin or ribeye, but cooking times may vary depending on the thickness and size.
What can I use instead of smoked mustard?
You can substitute smoked mustard with regular Dijon mustard or whole-grain mustard for a similar flavor profile.
Can I make this dish ahead of time?
While it's best served fresh, you can prepare the tenderloin and vegetables in advance, then roast them right before serving.
How do I store leftovers?
Store leftovers in an airtight container in the refrigerator for up to 3 days. Reheat gently in the oven or microwave.
Can I add other vegetables to this dish?
Absolutely! You can add carrots, potatoes, or asparagus to the baking dish for additional variety.
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